CSI Final Exam

True or False A Bloodstain that is circular is consistent with falling from directly above.

True circular stain= 90 degrees and falling directly from above

True or False The "disrupted edge" or tail of a bloodstain points in the direction of travel.

True leading edge disrupts

What is one variation in creating a sketch that will effectively allow the crime scene technician to document evidence on vertical objects? A. Photography B. Cross Projection Sketches C. Videography D. baseline mapping

B Cross Projection Sketches

Which characteristic is helpful in defining a cast-off pattern? A. Small bloodstain size B. Linear pattern of similar size stains C. Large, irregular shaped stains D. Moderate size bloodstains

B linear pattern of small stain size

What is the most effective method of packaging the mylar lift recovered from an Electro-static lift technique. A. Place in manila envelope B. Place in pizza box and tape it down C. Fold into a smaller envelope D. Place in plastic bag

B place in pizza box and tape it down

The best circumstances for the crime scene technician when evaluating bullet trajectories is when: a. There is a single penetrating bullet defect. b. There are multiple corresponding defects in solid surfaces and an associated penetrating or perforating wound. c. There are multiple corresponding defects in several solid surfaces. d. There are multiple corresponding wounds in the victim.

B there are multiple corresponding defects in solid surfaces and an associated penetrating or perforating wound

Extra Credit - 3 points Superglue fuming also has a another commonly used name. Which is it below? A. Quickset Gluing B. Cyanoacrylate Ester Fuming C. Gorilla Glue Fuming D. Cyanohydroxyalte Fuming E. Cyanide Ester Fuming F. Cyanocitrate Ester Fuming G. Cyanoanaline Fuming

B cyanoacrylate ester fuming

Name the three general attributes that all crime scene reports and narrative descriptions should share? A. They should be detailed, biased and unclear. B. They should be detailed, irrelevant and understandable. C. They should be detailed, accurate and understandable. D. The should be detailed, extremely long and unreadable

C Should be detailed, accurate, and understandable

Which term applies to the projectile fired from a handgun? A. Brass B. Caps C. Bullets D. Rounds

C bullets

What is the primary reason for using super-glue fuming technique? A. develop the print B. encase any DNA evidence with polymers to preserve for later C. stabilize the print D. it's the most sensitive method for developing prints

C stabilize the print

What is the value of applying a colored fixative to a snow print impression? A. Its sets the impression. B. It lets the CSI know where the detail is C. It allows better photographing of the impression. D. None of the above.

C using a colored fixative (ex: red paint) allows the detail of the snow print to be photographed more effectively

An alternate light source (ALS) can be used in the following ways: a. To locate semen urine or saliva using UV light (365-415 nm). b. As a crime scene search tool using a broad pass band filter (430-520 nm). c. To observe fluoroscein reactions in bloodstains using wavelengths of 455-485nm. d. All of the above.

D All of the above

BONUS: If correct +3 points on quizzes The presumptive test for blood that starts with a "P" is spelled: A. Phenolfthalein B. Fenolfthalien C. Phenolphthalene D. Phenolphthalein E. Phelofthalein F. Phenophthalien G. Phenolthalein

D Phenolphthalein

When screening footwear impressions and known shoes (from police officers that were in the scene), what's the best process? A. Not do it because the cops didn't have anything to do with the crime. B. Screen based on shoe size C. Screen based on patterns on the shoe D. Both B and C

D both B and C. Shoe size and patterns can easily eliminate shoes from being the source

Multiple Choice. Which of the following fingerprinting techniques are considered to be normal "on-scene" techniques: a. Physical Developer b. Ninhydrin c. Dye Staining d. Dusting

D dusting

Luminol is used for ... A. finding semen on underwear from a sexual assault. B. finding urine on a correctional officer's uniform from an assault at a jail. C. finding hairs/fibers on an object from a scene D. finding trace amounts of blood from a scene where a cleanup may have occured

D search for blood or cleanup/also reacts with cleaning solutions (bleach)

What is the "best" evidence to compare a crime scene impression to? A. Photographs B. Shoe of same brand and size from Foot Locker. C. Testimonial evidence from the suspect D. The actual shoe itself believed to be involved

D the actual shoe itself believed to be involved

True of False. The fingerprint search is directed at the "best surfaces" found in the scene (e.g. mirrors, television screens)

FALSE the fingerprint search is directed at the surfaces that were involved in the crime, no matter what their nature

True of False. There is only one right way to process the crime scene.

FALSE although the basic order of activity is not arbitrary and normally followed, flexibility is still required in order to deal with unique and odd circumstances

True of False. Blood will brightly fluoresce when exposed to Ultra Violet light.

FALSE blood absorbs all light and appears black under UV light

True or False: Phenolphthalein is a confirmatory test for the presence of blood.

FALSE it is presumptive- there are some false positives

True or False. Good crime scene photographs eliminate the need for detailed notes in the overall observation phase of crime scene processing.

FALSE notes supplement photographs and may answer details that are not evident in the photos

True or False: Contemporaneous notes from the scene are not necessary to be retained once the report is written.

FALSE they are necessary and often more detailed than the report

True or False. Cross contamination of serological evidence is never an issue when handling a single item of stained clothing.

FALSE where different stains are on the item (the context of the stains) can be revealing; thus improper handling can result in cross contamination from one point on the item to another

Which of the following are required elements of a diagram? A. Direction Notations/Compass Directions B. Name of suspect C. Name of investigating officer D. Your date of birth

A Direction Notations/Compass Directions

Multiple Choice. Patterned searches allow the crime scene technician to methodically search the scene, they include the following: a. Circle, Strip or Line, Grid and Area. b. Circle, Strip or Line, Grid , Point to Point and Zone. c. Circle, Strip or Line, Grid , Point to Point and Area. d. Circle, Strip or Line, Point to Point and Zone.

B

Multiple Choice. The six basic activities the crime scene technician engages in at the scene are: a. Assessing, documenting, sketching, searching, collecting and analyzing. b. Assessing, observing, documenting, searching, collecting and analyzing. c. Assessing, sketching, photographing, searching, collecting and analyzing. d. None of the above.

B

Multiple Choice. The three scene integrity issues are: a. Addition, destruction and loss of material in the scene. b. Addition, destruction and movement of material in the scene. c. Addition, creation of post incident artifacts and corruption of material in the scene. d. None of the above.

B Addition, destruction, and movement of material in the scene

Bias can defined as: A. a preconceived opinion of something. B. influence of environment and information on someone's perception C. prejudice in favor of, or against something D. cause to feal or show inclination for something E. All of the above

E All of the above

What characteristics of a bloodstain are important to BPA? A. Size B. Shape C. Distribution D. Location E. All of the above

E All of the above

Which are examples of bias: A. Being a Vikings fan B. Racism C. Not liking Tator Tot Hotdish (which I really like) D. Preferring to be in Florida on the beach instead of cold, wintery MN! E. All of the above F. None of the above

E All of the above

When determining an angle of impact for a bloodstain you need what information? A. Length of the stain B. Width of the stain C. Volume of the stain D. Color of the stain E. Both AandB

E both A and B (length and width)

Biological collections are important for what kind of forensic examinations A. Nuclear DNA B. Drug Evidence C. Mitochondrial DNA D. Latent Prints E. YSTR F. "A", "C" and "E" G. "A" and "C"

F STR (nuclear DNA), mtDNA and YSTR

True or False? The analysis and evaluation of physical evidence is flawless when compared to testimonial evidence.

FALSE Physical evidence doesn't lie but it can be misinterpreted

Name one method used for casting snow print impressions.

Sulfur or dental stone

True of False. The baseline mapping method is effective when presented with an exterior scene with few landmarks.

TRUE

True of False. The statement "The call you got isn't the call you get" simply means that the initial information provided to the police is often incorrect.

TRUE

True or False. Although the rough sketch created at the crime scene it not intended to be a work of art, it is expected to reflect the layout and orientation of the scene.

TRUE

True or False. An example of an unpredictable effect is the movement of a weapon in the crime scene by a first responder, which remains unreported and unrecognized by the crime scene team.

TRUE

True or False. When deciding upon how large of a search swathe to assign in patterned searches, the crime scene supervisor must consider the nature of the ground being searched, the lighting conditions, the on-scene environmental conditions and the size of the item being searched for.

TRUE

True or False: Reference points in mapping are necessary for having anchor points to work from for measuring items of evidence.

TRUE

True or False. Superglue fuming as a fingerprinting process is an effective on- scene technique primarily because it stabilizes the latent prints on a variety of surfaces.

TRUE CAE stabilizes prints for better analysis at the lab

True or False? Class characteristics are effective for eliminating an item for inclusion in a group, reducing the necessity of conducting further time or resource consuming examinations.

TRUE Once a class characteristic evaluation excludes the item there is no reason to conduct further examination

True or False: The term "cartridge" refers to a complete round of unfired ammunition.

TRUE cartridge is a complete round (cartridge case + bullet/projectile)

True of False. There is an empirical relationship between the shape of a bullet and the angle at which it struck a surface.

TRUE measurements of length and width, with invsin can give angle of impact

True or False. Field tests for lead and copper will assist the crime scene investigator is recognizing suspected bullet impacts.

TRUE field tests for copper and lead can indicate where a bullet struck

True or False. For purposes of choosing a fingerprint method, paper products and cardboard are considered to be porous surfaces.

TRUE paper and cardboard are porous