Forensic Science- Midterm

[Scientific method] This type of reasoning involves making inferences or drawing conclusions based on available evidence.

deductive reasoning

[Laws and Legal System] Eyewitness testimony is:

direct evidence only

[Crime Scene Sketching] Important information included in the measurements of a crime scene sketch include the legend, scale, and the __________.

direction north

[Scientific method] When we make an educated guess, we are making a:

hypothesis

[Types of Evidence] A pistol was found in a theater where a man was shot. A fingerprint was recovered. What type of evidence is the fingerprint?

individual

[Determine Trajectory] Which of the following best describes the trajectory of a projectile?

flight path of the bullet

[Introduction to Ballistics] Riffeling is only found in revolvers

false

[Laws and Legal System] This amendment of the U.S. Constitution prevents illegal searches and seizures.

4th amendment

[Paint Analysis] Which database is used to find paint formulas

PDQ

[Introduction of Ballistics] Shotgun barrels have the advantage of having multiple projectiles cover a large area

true

[Genetics of blood] Using the punnett square below, determine a possible genotype of the offspring's blood type if the mother is type AB and the father is type o.

type Ao

[Paint Analysis] How can paint be individual evidence?unique layers of pain, paint added after it came off of the assembly line

unique layers of pain, paint added after it came off of the assembly line

[Lab Safety] To find the odor of a substance, you should:

waft the fumes

[Careers in Forensics] ________ _______ is the application of science to criminal and civil laws that are enforced by the police agencies in a criminal justice system.

forensic science

[Chantilly Coco Case] Which piece of evidence came back negative for blood?

#11 red substance on wall by toolmark damage

[Determine Trajectory] A bullet hole is found in a wall 6 feet from the ground. The angle of the bullet hole is determined to be 9 degrees. A firearm was found 30 feet away. How high was the bullet fired from

10.75

[Observations & Deductive Reasoning] This type of reasoning is often used in applications that involve predictions.

Inductive reasoning

[Chantilly Coco Case] Based on ONLY the hair analysis results who can be ruled out as someone who was in the kitchen?

Aimee Swann, Meredith Lee, Carla Maxwell

[DNA Analysis and CODIS] The national database of DNA that stores profiles from convicted offenders, unsolved crime scene evidence, and profile of missing persons is called:

CODIS

[History of Forensics] What did Edmund Locard do?

Came up with the concept of cross transfer of evidence and is the bases of everything in Forensics

[Introduction to glass] To determine the direction the object was flying when it broke the glass investigators will look for the

Conchoidal fractures

[Chantilly Coco Case] The lead suspect in the Chantilly Coco case is who?

Crystal Macaroon

[Chantilly Coco Case] Who wrote the note left at the Crime Scene?

Crystal Macaroon

[Chantilly Coco Case] Whose pen was used to write the note?

Crystal Macaroon

[Chantilly Coco Case] Why did the DNA results for #2 from the Medical Examiners office come back as Error?

DNA was not human

[History of Forensics] Who is considered the "Father of Forensic Science" and developed the principle of cross transfer ("when any two objects come into contact with one another, a physical transfer occurs".)

Edmond Locard

[Gunshot Residue with lab] Gunpowder residue patterns CANNOT be detected by:

Goddard test

what type of glass is on windshields ?

Laminated

[Introduction of Ballistics] Riffeling of a barrel does what for the bullet?

Makes the bullet travel in a straighter line

[Chantilly Coco Case] Using the Electropherogram Data from the Chantilly Coco case can Ms. Aimee Swann be ruled out as a match for #4 hair on floor?

Ms. Swann can be ruled out since only one loci is a match

[Introduction to glass fracture] When analysing glass as trace evidence, investigators look for... Pick the one that is the best

Refractive index, color, thickness, densities, type of glass, curve

[Question Documents] Calculate the Rate of Flow for B A= 8 mm B= 6.5 mm C= 3 mm Solvent front= 20 mm

Rf=.33

[Chantilly Coco Case] The blood on the jacket pocket is what blood type

a+

[Question Document] What does not affect handwriting? speed mood paper alcohol all of the above

all of the above

[Employability skills] Critical Thinking is...

being able to evaluate arguments and information quickly, solve problems creatively and identify mistakes with efficiency

[Procedures and Chain of Custody] A crime scene investigator packages and records all data for an evidence sample and then gives the sample to a delivery person. The delivery person takes the sample to the evidence room where the evidence technician records his/her own information. What protocol has been broken?

chain of custody

[Procedures and Chain of Custody] A crime scene investigator packages and records all date for an evidence sample and then gives the sample to a delivery person. The delivery person takes the sample directly to the evidence room where the evidence technician records his own information. What protocol has been broken?

chain of custody

[Process a Crime Scene] The forensic problem that occurs if two bloody items are packaged together is called:

cross contamination

What is the outermost layer of the hair shaft called?

cuticle

automotive paint layers in the correct order:

electrocoat primer primer surfacer basecoat clearcoat

[Ethics of Forensic Science] It is a Forensic Scientists job to testify on behalf of only the prosecution.

false

[Gunshot residue with lab] GSR is the perfect piece of evidence. I can with complete certainty identify the shooter and tell the investigator exactly which gun was fired

false

[DNA Structure and Function] A DNA molecule is _____________ charged due to the ____________ contained in its backbone. The "rungs of the ladder" are actually __________ composed of 4 letters G, C, A, and T that code for specific proteins that determine a person's genetic code.

negatively, phosphate, nucleotides

[Trace evidence fibers] Which of the following observations are used to help identify a specific fiber?

on contact with the flame, the fiber coils or melts, color and structure of the residue left after the fiber burns, smell of the burned fiber

[Blood Typing] Blood types are determined by the presence of antigens located on the surface of the:

red blood cells

[Question Documents] Chromatography is a technique used to what

separate out the components of an unknown substance