Forensic Science Exam
Bio metric Databases exist for each of the following except:
Body odor
Known Sample
Exemplar
Striations are the diameter of a bullet.
False
The Brentamine spot test is a presumptive test for
Seminal fluid
Why do tire treads and shoe soles only produce class evidence?
They are mass produced with few variations
Why is it important to sketch out the crime scene?
To diagram the pattern of blood To diagram location of evidence To diagram location of victims
Can video be used to document a crime scene
True
Nothing about hair is comparable to the specificity of fingerprints
True
What type of firearm will continue to fire and expend cases as long as the trigger is depressed and ammunition is available
Automatic
Evidence is logged into the crime lab and it consists of a fired bullet and bullet casings. Which department in the crime lab would be tasked with analyzing this evidence
Ballistics
The duty of the first officer on the scene is:
To preserve life and property and to prevent contamination
What is the idea behind the Stuxnet computer worm?
To prevent Iran from achieving a nuclear bomb
In a rough crime scene sketch, what is the purpose of the two fixed points that you are to choose when completing a sketch?
To provide a reference point when including actual placement of evidence
In which century did Forensic Science first begin?
3RD
If one of your parents is blood type A and the other is blood type B, which of the following blood types would you likely be?
Any of the ABO blood types
Which field of forensics would involve using pollen grains to determine place/time of year of a crime scene?
Botanist
The written record of individuals who had control over an item of evidence
Chain of Custody
When a paint chip found on a hit-and-run victim's garment is examined side-by-side with paint removed from a vehicle suspected of being involved in the incident, this is an example of what?
Comparison
What type of instrument is used to magnify tool mark impressions and allow two pieces of evidence to be viewed side by side
Comparison Microscope
All medical examiners are trained forensic pathologists.
False
A test to determine admissibility of scientific evidence
Frye Standard
Any mark made in a softer surface by a harder implement or tool is called
Impression Evidence
A local crime lab is offering training sessions for law enforcement in the area. Which of the following descriptions would most likely be used for the seminar led by the medical examiner?
In this seminar, we will learn about ballistics and tool marks as present in the wound patterns of a body.
Why is it important to collect controls at the crime scene?
In order to have something to compare potential evidence found at the crime scene to
For all of the following types of evidence, indicate whether the evidence is likely to display individual or class characteristics: A well-developed and collected latent fingerprint Random striations on a discharged bullet A footwear impression with irregular and random wear patterns Irregular edges of a broken knife fitted together
Individual Characteristics
_____prints are clearly visible on surfaces and can be made by someone with paint or blood on their hands.
Latent
The term "forensics" is derived from the Latin term "forensus" which means:
Of the Forum
Which profession in the field in forensics would be most likely to perform an autopsy?
Pathologist
Conducting ballistics testing and then analyzing your results would be using a technique called
Pattern Analysis
Which part of the skeleton is most often used to determine the sex of a body found at a crime scene?
Pelvis
All of the following should be included in the notes taken by the crime scene investigator except
Photographs of the scene
When the crime scene investigators arrive at the crime scene, the first step is to
Protect and secure the crime scene
Which of the following is NOT a crime scene search pattern?
Square
A person is though to be guilty of committing a crime
Suspect
List one mistake made by the Italian Police Department initially at the crime scene.
The Italian police department did not protect and secure the crime scene
The test that was created in 1836 to detect arsenic is called the
The marsh test
The only blood type that does not have any antigens on the red blood cells is
Type O
A person with the blood type O negative can receive blood from which of the following?
Type O negative
Measures from the front center of a tire to the back center of a tire.
Wheelbase
A body is found in the woods and all you have left to analyze are bones and teeth. Explain what isotopes would be helpful to you as you seek to identify these remains and match them to a missing person's report. How would these isotopes help in the identification of this person?
carbon-12, carbon-13, nitrogen-14, and nitrogen-15
You have gathered some blood evidence from a crime scene and you type the blood. You get the following results: clumping in Anti-A serum clumping in Anti-B serum clumping in Anti-D serum What is the blood type of the sample?
AB positive
Which of the following terms refers to the cooling of a body after death
Algor Mortis
When items of evidence have individual characteristics, this can lead to a determination of common origin (i.e., the conclusion that they are from a single source). Which type of evidence cannot yield such results?
Cotton fibers on victim
What level of education is required of a medical examiner
Medical degree
Second level details use friction ridge features on each fingerprint to aid in identification. These features are collectively called______.
Minutiae
Once DNA is collected at a crime scene, it must be processed in the lab. If there is a limited quantity of DNA available, what step must the technician take in this process?
PCR is used to amplify the DNA
a curved line terminates
Ridge ending
Which of the following body changes occurs to a corpse first?
Rigor Mortis
Computers can be used to reconstruct events such as traffic accidents.
True
The skeleton will be examined for a single point impression or striations indicative of movement across a surface by a tool.
True
Chain of custody is a procedure used in crime scene investigations to:
Verify each person that has touched the evidence
Which of the following is not a role of the crime scene investigator?
arrest suspects
Why is it important to sketch out the crime scene?
All of the above- To diagram location, pattern of blood, location of victims
Made in imitation of something else with intent to deceive
Counterfeiting
During the course of a trial, the defense suggests that the fiber evidence used to match the car used to transport stolen goods (and thus bring charges against the owner of that car) were not collected properly. Who will the prosecutor most likely bring in to testify regarding that defense strategy?
Crime scene investigator
Digital evidence can be stored or transmitted in binary form. Which of the following locations would you LEAST likely be able to extract digital evidence as a forensic scientist?
DNA
There are five steps in crime scene reconstruction. The first step is _____________________.
Data Collection
Deals with the admissibility of expert witness testimony in court
Daubert Rule
The delta point is a pattern of a fingerprint that resembles the Greek letter delta. It's the point on a friction ridge at or nearest to the point of divergence of two type lines.
Delta
If the laboratory can piece together broken glass from a window or headlight, then the evidence has _____ characteristics.
Individual
The process of linking physical evidence to a common source
Individualization
Saying that every piece of evidence is unique is using the forensic process of _____________________.
Individulazation
A substance that requires you to ingest a large amount for it to be lethal is called a(n)
Intoxicant
Which of the following evidences is an example of individual characteristics?
Irregular edges of a broken knife
The universal blood donors for the ABO system are type
O
When the crime scene investigators arrive at the crime scene, the first step is to
Protect and Secure the crime scene
What is the appropriate first step in a crime scene investigation?
Protect and secure the crime scene
Which of the following evidences is an example of individual characteristics?
Random Striations on a bullet
The method used to support a likely sequence of events by observing and evaluation physical evidence and witness statements is
Reconstruction
The written record of all of the individuals who have had any contact with the evidence is called
The chain of custody
All of the following are stages in the Blowfly life cycle except
The cocoon stage
Explain the problem with the chain of custody in this case.
The evidence was not protected and a lot of people contaminated the crime scene
This tissue is very slow to decay so it will retain toxins longer than any other organ, It is also called "eyeball fluid".
Vitreous Humor
The principle of individuality forms the basis for handwriting analysis. Which of the following is NOT a characteristic of that principle and NOT a principle of the scientific analysis of handwriting?
You tend to hold your pen a certain way, shape your letters and space letters and words in a specific pattern
Isotopic analysis is an exciting new field of forensics and can help investigators solve crimes from long ago. But the field has some limitations and concerns. Which of the following is NOT an area of concern in this field?
new technology is helping scientists analyze samples
List the steps that should have been taken in the investigation of this crime scene.
1. The crime scene should be protected and secured 2. Observe and document the crime scene 3. Photograph the scene 4. Collect the evidence
How many digital "warheads" are present in this computer worm?
2
Salary: $ 27, 509 annually Duties: • Collect, develop, preserve latent fingerprints • Search out, collect, preserve, log evidence • Document all handling of evidence and property • Maintain activity logs and generate reports • Respond to emergency and non-emergency calls for service • Transports evidence to Property Control Office Requirements: Skill in maintaining records, work as a team member, interact with people of different social, economic, and ethnic backgrounds, communicate clearly and concisely both verbally and in writing; must complete forensic science course from American Institute of Applied Science within 14 months of hire; successful completion of background investigation and polygraph required
Crime Scene Investigator
A questioned document is any signature, handwriting, typewriting, or other mark whose source or authenticity is in dispute or doubtful. The document must be on paper to be considered a questioned document.
False
Analysts will look most closely at the newest tools, as newer tools (released most recently from a factory and with the least use) increase the potential for individualization.
False
Animal hairs have never been used to solve crimes as they very much resemble human hairs.
False
Indented writing is when someone writes on top of another sheet of paper and the pressure of the pen transfers to the paper below. It is possible to lightly rub the indented paper with pencil to reveal the writing.
False
Often times it is difficult to tell from which gun a cartridge came as different guns may leave the same striations on a bullet.
False
The caliber of a bullet can be determined by measuring the length of the bullet.
False
The suspect tools will be fitted into any tool marks present on the skeleton to see if it is a match.
False
If it takes 23 hours for the egg of a Green Bottle fly to develop into the first instar stage at 70°F, and 27 hours for the 1st instar to develop into the 2nd instar at the same temperature, calculate the total ADH.
3500 ADH
You are touring a forensics lab and overhear a chemist discussing the stationary phase and the mobile phase of a test she is conducting. She states that she is waiting for baseline resolution before conducting the next test. She is most likely referring to ...
Chromatography
Which or the two, circumstantial or direct, is an indirect type of evidence?
Circumstantial
Making a guess when trying to explain how a crime scene was created is called__________________________.
Conjecture
When trace evidence is added to a crime scene after the crime has taken place
Contamination
What is the name of a common poison used for executions that causes a bright cherry red blood?
Cyanide
Which of the following evidence would a forensic botanist use to determine if a victim has been killed by drowning:
Diatoms
Identification stamps or logos are used to solve crimes and are found on:
Drug tablets
Then, someone applied powder where I lay and brushed some of the powder away. He brushed a little too hard, though, and damaged a small part of me. A light flashed from a camera Then, tape was laid down on top of me and the powder. Next thing I knew, I felt myself being lifted from the surface! I was laid down on an index card and put in a bag.
Crime Scene Investigator
Which profession would study pollen and particulate matter?
Palynologist
Using the following information, answer the question below: Female height estimation (cm) H = femur length x 2.21 + 61.41 H = tibia length x 2.53 + 72.57 H = humerus length x 3.14 + 64.97 H = radius length x 3.87 + 73.50 Male height estimation (cm) H = femur length x 2.23 + 69.08 H = tibia length x 2.39 +81.68 H = humerus length x 2.97 + 73.57 H = radius length x 3.65 + 80.40 There is a femur bone found in a shallow grave. Forensic scientists measure the bone and find it to be 35.2 cm. How tall would this person be if it were from a male?
35.2 x 2.23+69.08= 147.6
STR analysis is used in the lab to visualize DNA. It uses short, repeated sequences of DNA to produce a DNA fingerprint. In the sequence below, how many repeats are present? ACGACGACGACGACG
5
Using the Henry Classification system described in the notes, calculate the primary classification number for the following fingerprints: Right Thumb - Whorl Left Thumb - Whorl Right Index - Loop ` Left Index - Arch Right Middle - Arch Left Middle - Arch Right Ring - Loop Left Ring - Whorl Right Little - Whorl Left Little - Loop
5/22
During the course of a trial, the defense suggests that the fiber evidence used to match the car used to transport stolen goods (and thus bring charges against the owner of that car) were not collected properly. Who will the prosecutor most likely bring in to testify regarding that defense strategy?
Crime Scene Investigator
When a forensic analyst determines the chemical composition of a preparation that may contain illicit drugs such as heroin, cocaine, or barbiturates, this is an example of what?
Identification
refers to the point in a fingerprint where a ridge divides to form two ridges
Bifurcation
All of the following are components of a rough sketch except
Drawn to scale
Which of the following is not a role of the crime scene investigator?
Arrest suspects
Blood evidence has to be tested to determine if it is human blood. The confirmatory test for human blood is
ABA Hematrace test
When entomologists use insects to determine PMI (postmortem interval), they must consider environmental conditions. These environmental conditions include
All of the above- temperature, presence of rain, exposure of the body
Which of the following branches of Forensic Science would use characteristics of guns to determine weapons used at a crime scene?
Ballistics
Which of the following is true about the collection of evidence at a crime scene?
Each piece of evidence must be packaged in a separate container with a detailed label
Which of the following is true about the collection of evidence at a crime scene
Each piece of evidence must be packaged in a separate container with a detailed label.
Which of the following branches of Forensic Science would involve a dentist?
Forensic Odontologist
You analyze two samples, and exemplar and an signature unknown sample, and conclude that there are differences in line quality, connecting strokes, pen lifts, starts and stops and retouching. What is the best conclusion based on these observations?
Forged Signatures/ Writing by freehand
At a crime scene investigation, when the investigator is documenting notes, all of the following rules are correct except..
No names of people should be included in order to protect their privacy
Which type of a crime scene is more susceptible to environmental loss and damage?
Outdoor
more susceptible to environmental loss and damaging effects on biological evidence
Outdoor crime scenes
The two methods for alcohol elimination include
Oxidation and Excretion
Which of the following evidences is an example of individual characteristics?
Random striations on bullets
Once the investigators arrive at the crime scene, and they protect and secure the area, what is the next step in the investigation?
The investigators should observe and document the scene
Which field of forensics would involve detecting drugs and poison at a crime scene?
Toxicologist
A local crime lab is offering training sessions for law enforcement in the area. Which of the following descriptions would most likely be used for the seminar led by the medical examiner?
in this seminar, we will learn about ballistics and tool marks as present in the wounds patterns of a body
Something that serves as a means of transportation
Conveyance
Which of the following branches of Forensic Science would identify sex, age, and height from human remains?
Forensic Anthropology
Salary: $ 41, 667 - $ 68, 177 annually Duties: • This is a non-sworn position and may be located in either of 3 laboratory settings: Drug Chemistry Section at the Raleigh Laboratory, Triad Regional Laboratory (Greensboro), or Western Regional Laboratory (Asheville) location. • Performs chemical and instrumental analysis on drug and/or toxicology evidence • Prepares a laboratory report that supports the analytical findings • Provides testimony as an expert witness in court proceedings • Participates in competency and proficiency testing Requirements: Obtain individual certification consistent with international and ISO standards within 18 months of the date the analyst becomes eligible to seek certification according to the standards of the certifying entity, undergo and must successfully complete a comprehensive background investigation. Master's level college degree. Overtime is required in this position
Forensic Crime Laboratory Scientist
The most widely used confirmatory tests for toxins and poisons is
Gas Chromatography
What department in the crime lab would analyze this fingerprint evidence?
Latent Evidence
Comparison of documents made using a machine, such as typewriters, photocopiers, and computer printers, in which the specific machine used is analyzed for difference
Mechanical Comparisons
What level of education is required of a medical examiner?
Medical Degree
A medically qualified person who investigates deaths under unusual circumstances
Medical Examiner
The other print was made during the processing of the dead body.
Medical Examiner
This murder occurred LONG before DNA testing could be used to determine if the remains were (or were not) Laura Foster. DNA tests can compare samples from remains (such as teeth) to a sample known to be from the individual to determine if the two match. No two individual have exactly the same DNA. If DNA evidence could have been used in this way in this case, what type of evidence would that provide as to the identify of the remains?
Physical and Direct
IN medical and forensic science a ________test tells you if a substance is present on a surface.
Presumptive test
A bloodstain pattern where the blood has been released under pressure as opposed to being formed from an impact with an object is called____.
Projected blood spatter
Explain what "recognition" of the evidence means to forensic investigators.
Recognition is used to identify a suspect. If there isn't enough evidence to find the suspect they will use recognition to find the perpetrator.
Determining when a person entered or left a crime scene is an example of
Specific Event Reconstruction
_______________________ is a re-enactment of the entire event that is under investigation. Connections are made between the sequence of events and the evidence.
Specific Incident Reconstruction
Analyzing blood spatter evidence and trying to decide what type of weapon was used in a crime is an example of
Specific Physical Evidence Reconstruction
List at least two types of evidence that could have been collected from this scene.
The moved furniture and the blood found in the bathroom and bedroom
Investigators are called to investigate a possible arson. They collect some clothing from this crime scene. How should the investigators package this evidence?
They should make sure the container is airtight
A person with blood type AB can receive blood from which of the following blood types?
A,B,O
Scene 4: Special Agents from the FBI also extracted data from the hard drive of Weaver's computer. Despite the fact that Weaver had deleted multiple files, the investigators were able to recover two files of great interest: First, a PowerPoint presentation dated to January which he gave to fellow members of his fraternity, Tau Kappa Epsilon. He proposed that he run as president and his fraternity brothers run as vice presidents and other officials—with each titleholder receiving an annual stipend of $1,000 to $8,000. If they won, Weaver and his brothers would control the student-government budget. Second, a spreadsheet (the one visible in the video footage) in which he had recorded the usernames and passwords of 740 students. (Students have to use the username and password to access the college computer systems and internet). How did detectives recover deleted files? Think of a file system as a book with an index. When you delete a file all you are in fact doing is removing the index entry in the book for that page or chapter, the page or chapter still stays there. When your computer writes more data to the disk it may, or may not, overwrite the previously 'deleted' file. If it is overwritten, then the file is gone, if not the file still remains on the hard disk. Just turning your computer on, or browsing the Internet will cause new information to write to your hard drive. This means that the more time passes from the time the file was deleted, and the more the computer is used after the file was deleted, the higher the chances of the file being overwritten. As the lead digital forensic scientist on this case, you are called into the trial to provide expert testimony. Summarize what your testimony would likely include. Make sure to answer the following questions: What evidence suggests that Matthew Weaver deliberately stole the identity of over 700 students in order to rig the election? Is this evidence reliable, even if it is extracted from deleted files? How do you know? The Fourth Amendment question that typically comes up in digital evidence cases asks whether an individual has a reasonable expectation of privacy having electronic information stored on electronic devices under that individual's control. Did you ever feel, as a digital forensic expert, that you were violating Matthew Weaver's right to privacy?
1. a spreadsheet in which he had recorded the usernames and passwords of 740 students 2. yes, because when you delete a file all you are in fact doing is removing the index entry in the book for that page or chapter, the page or chapter still stays there. When your computer writes more data to the disk it may, or may not, overwrite the previously 'deleted' file. If it is overwritten, then the file is gone, if not the file still remains on the hard disk. 3. No because weaver is a suspect and the files on his computer are hard evidence that he committed the crime.
The process of where the body breaks down a substance so that it can be eliminated by the body is called
Bio transformation
The Phadebas/RSID test is used as a presumptive test for detecting the enzyme amylase. A positive test for amylase will cause a ________ after adding the Phadebas tablet.
Blue color change
You are an intern at a digital forensics lab. Your supervisor asks you to research CODIS, a database that you will be using often in the lab. You are excited because you learned all about CODIS in your forensics class! Which of the following is NOT true of CODIS?
CODIS is an acronym for Criminal DNA Index System
Three-dimensional structure which can provide a positive reproduction of the footwear.
Casting
A forensic scientist receives an unknown liquid. Upon close observation, it appears there may be small objects floating in the liquid. What tools would use density to separate components of the liquid by spinning the liquid?
Centrifuge
refers to the center area of the fingerprint
Core
Salary: $ 66, 7880 - $ 96, 824 annually Duties: • Analyzing blood samples for the presence of alcohol • Writing detailed reports • Conduct the interpretation, evaluation, and quality review of analytical results and reports • Will assist in the training of blood alcohol examiners, maintain instrumentation, validate new methods, and establish and write policies and procedures. Requirements: Experience as a Technical Leader of a Blood alcohol unit, have worked in an accredited Forensic Laboratory, experience validating instruments and methods, experience as a Technical Assessor for a Laboratory Accreditation Body, experience in training blood alcohol analysis, knowledge of Toxicology blood drug analysis, strong communication skills, strong writing skills
Forensic Crime Laboratory Scientist
Season 14: Episode 1 - The Devil and D.B. Russell. After learning that CSI Morgan and Ellie Brass have both been taken captive by their still unknown murder suspect, the CSIs race to piece the clues together and solve the case before it's too late. The killer, using engravings from Dante's Divine Comedy as inspiration, leaves two more bodies for the team to find, then kills their chief suspect in a fiery explosion. With only two of the Nine Circles left, the CSIs know that Morgan and Ellie will be the killer's next victims. Russell makes a break in the case when he solves an anagram that was engraved under a victim's skin, leading them to Jake and Matthew Chapman. As the CSIs race for the Chapman hideout, Morgan and Ellie manage to escape, killing Matthew in the process. However, Ellie surprises Morgan and shoots her, then lies to the cops while Morgan is unconscious in surgery. Later, Ellie kills her mother Nancy, then turns the gun on her father, Brass. Fortunately, the CSIs uncover that she was the one responsible for the murders and arrive in time to subdue and arrest Ellie.
Fortunately, the CSIs uncover that she was the one responsible for the murders and arrive in time to subdue and arrest Ellie. After learning that CSI Morgan and Ellie Brass have both been taken captive by their still unknown murder suspect, the CSIs race to piece the clues together and solve the case before it's too late.
A false representation of a matter of fact—whether by words or by conduct, by false or misleading allegations, or by concealment of what should have been disclosed—that deceives and is intended to deceive another so that the individual will act upon it
Fraud
Which tool is sometimes referred to as a "wet bench" because the chemicals used (solvents, corrosives, etc) are often liquid, and is essential for the safety of the forensics lab?
Fume Hood
The likelihood of finding class physical evidence is _____ the likelihood of finding physical evidence with individual characteristics.
Greater than
The rifled barrel has a series of spiral cutouts that include ___________________ or depressions and __________________________ or raised areas.
Grooves and Lands
The analysis of _________________________ can give you information about a person's most recent past.
Hair and Fingernails
Scene 2: During the voting process, university officials noticed that more than 150 votes were cast from the same IP address (the one you saw in the previous question). Right before the voting ended, on March 15th, officials noticed that 259 votes were coming from another IP address, this one a public computer. Officials tracked the IP address to a classroom, and found Matthew Weaver, a junior at the college and a business major, sitting at the computer in question. Matthew Weaver also happened to be one of the two students running for the office of Class President. Weaver claimed he was working on a school project. The university police officer arrested Weaver and seized his bag. Upon searching his bag, the police officer discovered 15 small devices called key loggers. A key logger is a device that can be inserted into a computer to record a person's keystrokes, usually without their knowledge. Local police were notified and Weaver was taken into custody. The key loggers were analyzed and contained data from 19 different university computers, with information from over 700 different computer sessions. Based on the facts now available, what is the most likely scenario investigators will work with as they plan how to proceed with the digital investigation?
Matthew Weaver used the key loggers to steal student usernames and passwords and used those to log in as other students and vote for himself.
What level of education is required of a medical examiner?
Medical degree
The inner part of the hair that gives it flexibility and is in the middle of the hair shaft is called the
Medulla
In order to be an isotope the element would have to have a different number of
Neutrons
Reconstruction of a crime scene involves the analysis of lots of evidence. It is the job of the forensic investigator to determine what is really evidence and what was collected but is not important to the crime. The term used in scene reconstructions to describe this process is called_____________________.
Recognition
Drawing of the crime scene to show position of victim, location of evidence, and entrance/exit
Sketch
Using techniques such as pattern analysis when looking at blood splatter would be a part of __________________________.
Specific Physical Evidence Reconstruction
The two main goals of a chemist in a forensic lab is separation/isolation of chemicals in an unknown substance and identification of each chemical in an unknown substance. Which of the following tools would be the best choice for identification of a chemical?
Spectrometer
Prior to each cell division, the DNA must replicate. If one strand of DNA has the base sequence, ATCGCC, the complementary (matching) side will be
TAGCGG
Fact: A body was found in an unmarked grave. That grave showed marks of a mattock used as the tool to dig the grave. Charge: Tom Dula and Anne Melton premeditated the murder of Laura Foster and dug the grave in advance of the killing. Evidence: Lotty Foster said that Tom Dula came to her house to borrow a mattock and left with it going towards his mother, Mary Dula's house; she did not get her mattock back for 3 or 4 days after she had asked for it twice. Martha Gilbert testified that she saw Tom Dula on the path between Tom Dula's mother's house and Anne Melton's and he had a mattock and was digging alongside the path. She asked what he was doing and he said skelping (digging or fixing) the path; this was 200-300 yards from the grave that was found. Pauline Foster said that Ann Melton left after dinner on Thursday night and went in the direction of Ridge Road; she did not come back until about an hour before daybreak on Friday. Pauline Foster said that when Ann Melton returned on Friday about an hour before daybreak; her shoes and dress were wet. Washington Anderson said that he went to James Melton's on Thursday; James Melton, Jonathan Gilbert and Pauline Foster were there; Ann Melton was not there. Washington Anderson returned to James Melton's on Friday morning and Ann Melton was there in bed and her shoes were wet. Which of the following best describes the evidence provided by Lotty Foster for this charge?
Testimonial and Circumstantial
Gun shot residue, hair fibers found on a car seat and glass found on the floor board of a car would be examples of_______.
Trace Evidence
Chain of custody is a procedure used in crime scene investigations to:
Verify each person who handled or examined the evidence
Scene 3: Four days after his arrest, on March 19th, local journalists received a screenshot from a chat room. In the screenshot, it shows several students (Brian Wales, Derek Yates, Marcus Lin) seemingly discussing how they deliberately smeared Weaver's reputation by setting up the election rigging. Weaver asks police to drop the investigation. The police reviewed video evidence from a campus surveillance video in the computer lab where Weaver was arrested. The video shows Weaver intercepted an email from a student, Sheridan C., to the university administrator. Sheridan complained to the administrator that she was unable to vote. Weaver is seen pulling up a spreadsheet on his computer, and then entering Sheridan's username and password to access her email. He then wrote a second email to the administrator, posing as Sheridan, and writing that she was now able to vote and to disregard the first email. Then, he deleted the entire conversation from Sheridan's inbox. This video footage gave police all they needed to obtain a warrant for Weaver's computer. The FBI was then called in to the investigation to provide digital forensic support. The first step by the FBI was to review Weaver's browser history. Below is an excerpt from his browser history log that shows several relevant entries (irrelevant entries are not shown.)
Weaver both researched and ordered key loggers and likely set up the fake chat that implicated other students
The name for a collection of criminal cases of the first forensic science case where a woman claimed her husband died in a fire
Yi Yu Ji
According to the cyberforensic expert, what makes this computer worm so dangerous?
it is a cyber weapon it is designed to circumvent the digital safety system the attack is generic
By photographing the crime scene, the investigator is able to provide all of the following to the judge and jury except
A "to scale" drawing of the scene.
Which of the two, direct or circumstantial, is means of proof showing the existence of a fact in question without the intervention of the proof of any other fact?
Direct
Which field of forensics would use insects to determine time of death?
Entomologist
Why is it important to make sure to include signatures of all people that have had contact with a piece of evidence as well as the reason for the contact?
It is important to establish the chain of custody to show that the evidence has not been contaminated.
Creating a reconstructive theory is the _______________step in the crime scene reconstruction process.
Last
Salary: $ 142, 290 - $ 248, 082 annually Duties: Provides administrative and pathology assistance Morgue administration, supervising the activity of the professional and technical staff in autopsy-related activities Performs approximately 250 medicolegal autopsies per year Twenty or more times a year, testifies in state and federal courts regarding autopsy findings Reviews 1400-1450 non-central office cases annually for completeness and accuracy and consults with local medical examiners Requirements: Extensive knowledge of the diversified specialized equipment, instruments, and materials required in all phases of pathology. Considerable knowledge of microscopy, toxicology, ballistics, and investigative techniques as they relate to forensic medicine. Thorough knowledge of procedures involved in detection, analyzing, evaluating, and interpreting manifestations and symptoms of physical conditions from pathologic examinations. Licensed to practice medicine in the state of North Carolina, board certified in Anatomic and Forensic Pathology by the American Board of Pathology and two years of experience in forensic medicine; or an equivalent combination of education and experience
Medical Examiner
Fact: September 1st, 1866 a grave was found. The removed earth had been carried away and sod replaced. There were signs of a mattock (an agricultural tool that is shaped like a pickax) in the hard side of the grave. The grave was not far from the path leading to Lotty Foster's house, but on a secluded ridge covered by thickets. Conclusion/Charge: The remains found in the grave were thought to be Laura Foster, who was last seen on May 25th, 1866. An extensive search had been made for her after her disappearance and the return of the horse she was last seen riding, but her body was never found. Evidence: Dr. George N. Carter testified that he examined the body of the female at the spot where it was found. There was a cut in the clothes that corresponded with the cut in the body on the left breast between the third and fourth ribs. The grave was 2.5 feet deep and very narrow, not long enough for the body so the legs were drawn up. Due to the decomposition of the body he could not tell if the wound was fatal but if it penetrated the heart it would have been. There was a bundle of clothes in the grave. Betsey Scott (a neighbor) testified that she saw Laura Foster riding a mare coming from and about a mile from Wilson Foster's house with a bundle of clothes in her lap. Which of the following best describes the evidence of Betsey Scott for this charge?
Testimonial and Circumstantial
A bloodstain with no DNA-containing cells is an example of class evidence
True
A rifling impression is left on the surface of a bullet after it has been fired.
True
You are trying to figure out when a person arrived on the scene and when they left the scene. Analyzing this part of the reconstruction means that you are
working on specific event reconstruction.
Salary: $ 46, 707 - $ 60, 135 annually Duties: • Collect, processes and safeguards evidence • Provides court testimony • Supervises investigators when officer in charge is absent • Examines physical evidence to determine what method of processing to use Requirements: Must possess a Bachelor of Science degree in a natural or forensic science from an accredited university; graduates of programs accredited by the Forensic Science Educational Program Accreditation Commission are preferred. Knowledge of principles, theories, concepts and practices of analytical chemistry, physical sciences, or biology or related field to the work. Knowledge of the rules of evidence and the methods used in presenting evidence in court; and policies and procedures for maintaining the chain-of-evidence integrity. Knowledge of safety practices and procedures that apply to field analysis, particularly in the forensic laboratories; and knowledge, skill and ability to maintain research methods and techniques, keep informed of current literature and/precedence relevant to the forensic scientific fields.
Forensic Crime Scene Investigator
A woman looked at me carefully using a small magnifier she called her She used a small pointer to count my ridges and wrote down many details about my appearance. She placed me beside another card with a print that was taken from a woman. After careful comparison, she placed me carefully back into the bag and back into my drawer.
Crime Laboratory Scientist
Facts: Tom Dula was known to be "courting" (dating with intent to marry) both Laura Foster and Ann Melton. Laura Foster was alive at daybreak on Friday, May 25th (the day of her disappearance). Wilson Foster (Laura's father) discovered a missing mare on the same morning his daughter disappeared. A search was made for Laura Foster but she was not found. Wilson Foster's mare returned home with the remains of a chewed rope three weeks later. Conclusion/Charge: Laura Foster was lured from her house with the pretense that she was meeting Tom Dula to run away and get married. She took her father's mare and went to meet him at a home known as the "Bates place". Evidence: Wilson Foster testified that Laura Foster went outside about an hour before daybreak on Friday but came back in after a few minutes. When he woke up about daybreak she was gone and so was his mare. He tracked his mare to the Bates place where he lost the trail. Betsey Scott (a neighbor) testified that she saw Laura Foster riding a mare coming from and about a mile from Wilson Foster's house with a bundle of clothes in her lap.She asked Laura Foster if Tom Dula had come and Laura Foster said yes, just before daybreak; she asked where Laura Foster was going to meet him and she said the Bates place. Carl Carlton testified that he saw Tom Dula on Friday morning a little after the sun came up (about 6:45 am) on the path from his house towards the Bates place; he came from the direction of Wilson Foster's (the home of Laura Foster). Several others testified to the same. J.M. Winkler said he was part of the general search for Laura Foster. He helped search the Bates place and saw the chewed rope tied around a dogwood. It matched the rope on the mare. Which of the following best describes the evidence found by J.M. Winkler for this charge?
Physical and Circumstantial
Facts: Laura Foster was a 21 year old woman, daughter of Wilson Foster, who was last seen on May 25, 1866. Tom Dula was a 21 year old Confederate Veteran, who was known to be courting both Laura Foster and Ann Foster Melton, who were cousins, before the war. By the end of the war, Ann Foster Melton had married her husband. Upon the return of Tom Dula from war, the competition between the cousins for the affection of Tom Dula began again. Charge: Ann Melton planned and helped with the murder of Laura Foster. Evidence: Pauline Foster said that her cousin (Pauline lived with the Melton family) Ann Melton told her that she was going to kill Laura Foster, and threatened Pauline to keep her quiet, and then left the house on May 24. Pauline also said that later in the day she saw Tom Dula coming to the Melton's house from the direction in which Ann Melton had gone earlier that day. Which description below best describes the evidence provided by Pauline Foster for this charge?
Testimonial and Direct
During a crime scene reconstruction an investigator must compare known samples of evidence with unknown samples collected from the crime scene. This process is known as ____________________.
Testing
Scene 1: It is a big day at California State University - San Marcos. Today is Election Day for Student Government offices. College elections are conducted online, with each student using his/her online college account. The account requires the student to log in and have the password. The stakes are high - not only do the votes determine who has the honor of leading, but the positions come with a salary. The campus president receives a stipend of $8,000 and vice-presidents receive $7,000. They also control a $300,000 dollar annual budget. During the voting process, university officials monitor the online votes and look for any irregularities. Here is an excerpt from the log. This excerpt identifies votes that occurred within a 5 minute timeline, from 9:00am to 9:05am. The user ID is a 3 letter combination that is unique for each student. The IP address identifies the specific computer from which the vote was cast. All public computers on campus begin with the code 67. Examine the log and then answer the question that follows. Please note, once you select your choice and move forward, you will not be able to return to this question.
The IP address repeat, suggesting the same non public computer was used for multiple votes
Ballistics is the study of
weapons and markings at a crime scene
