CSI Final Exam Cards

What is one of the cardinal rules of photography regarding negative space?

a. Use oblique lighting

b. Fill the frame

c. Keep the film plane parallel

d. Maximize depth of field

Fill the frame

What does an 18% gray card help determine?

a. Shutter speed

b. Proper exposure

c. ISO sensitivity

d. Aperture size

Proper exposure

How does ISO affect photography?

a. It adjusts shutter speed

b. It measures the camera's sensitivity to light

c. It determines lens distortion

d. It controls the depth of field

It measures the camera's sensitivity to light

What is a telephoto lens best for?

a. Capturing details with shallow depth of field

b. Close-ups

c. Distortion-free images

d. Wide scenes

Capturing details with shallow depth of field

What does the polarizing filter do?

a. Increases light sensitivity

b. Blocks polarized light to see through glass

c. Reduces image noise

d. Enhances color saturation

Blocks polarized light to see through glass

How is the angle of the film plane calculated?

a. N * M = angle

b. Cos theta = N/M

c. N - M = angle

d. N + M = angle

Cos theta = N/M

What is the purpose of scales in photography?

a. Improves light sensitivity

b. Enhances color accuracy

c. Reduces distortion

d. Provides a size reference for objects

Provides a size reference for objects

What technique is essential for photographing impressions?

a. Use a wide-angle lens

b. Position flash close to the impression

c. Camera parallel to the impression

d. Use ambient light

Camera parallel to the impression

Which digital image format is known for being uncompressed?

1. JPEG

2. TIFF

3. Raw

4. GIF

Raw

What does the 4 corners method involve?

1. Using a wide-angle lens

2. Taking one photo per wall

3. Photographing only the center

4. Taking photos from each corner of a room

Taking photos from each corner of a room

What is 'painting with light' used for in photography?

1. Landscape photography

2. Portraits

3. Daylight scenes

4. Night scenes

Night scenes

What must a witness do when presenting pictorial evidence?

1. Ignore the quality of the images

2. Present only digital formats

3. Provide personal opinions

4. Testify that the photos are fair and accurate

Testify that the photos are fair and accurate

What is a key consideration in the digital chain of custody?

1. Use any format for images

2. Change images without documentation

3. Ignore access records

4. Detail any enhancements made to the image

Detail any enhancements made to the image

What is included in a report according to ASCLD/LAB requirements?

1. Loose notes

2. Chain of custody

3. Personal opinions

4. Unrelated images

Chain of custody

How should errors be corrected in documentation?

1. Leaving the error uncorrected

2. Erasing the error completely

3. By striking through the error with a line and signing nearby

4. Adding a note without a signature

By striking through the error with a line and signing nearby

What is an amended report used for?

1. Indicating a correction to a previously issued report

2. Issuing new findings

3. Summarizing case details

4. Providing initial observations

Indicating a correction to a previously issued report

What should be displayed at the beginning and end of a video?

1. Scene descriptions

2. Background music

3. Camera date/time stamp

4. Personal notes

Camera date/time stamp

What is required for filming an arson scene?

1. Ignore the damage

2. Focus solely on the crowd

3. Only record exterior shots

4. Show devastation and burn patterns

Show devastation and burn patterns

What is a rough sketch used for in crime scene documentation?

1. Detailed for court

2. Documents size of scene and elements within

3. Drawn to scale

4. Includes compass orientation

Documents size of scene and elements within

What must a reference point be in crime scene measurement?

1. Only visible from one angle

2. Temporary and movable

3. Fully described with unobstructed path to evidence

4. Not related to evidence

Fully described with unobstructed path to evidence

Which type of fingerprint is created from contamination with foreign materials?

1. Patent prints

2. Invisible prints

3. Plastic prints

4. Latent prints

Patent prints

What is an exploded view sketch?

1. 3D perspective

2. Detailed measurements

3. Shows components separated for clarity

4. Bird's eye view

Shows components separated for clarity

How are skid marks measured in an accident scene?

1. Just estimate the length

2. Measure beginning and end, plus extra points if surface changes

3. No need for measurements

4. Only measure the end

Measure beginning and end, plus extra points if surface changes

What is the purpose of a final sketch?

1. Only for personal notes

2. Detailed and to scale for reports and court

3. Rough approximation of the scene

4. Quick and not to scale

Detailed and to scale for reports and court

Which measurement method uses two fixed points to locate evidence?

1. Triangulation

2. Baseline coordination

3. Grid mapping

4. Single point measurement

Triangulation

What does a floor plan sketch show?

1. The room from a bird's eye view

2. 3D perspective

3. Scene from one angle

4. Detailed measurements

The room from a bird's eye view

What type of print is created when a finger presses against soft material?

1. Plastic prints

2. Invisible prints

3. Latent prints

4. Patent prints

Plastic prints

What is the primary purpose of including directional indicators in a sketch?

1. To confuse viewers

2. To add color

3. To depict orientation

4. To simplify the sketch

To depict orientation

What are latent prints primarily composed of?

1. Only moisture

2. Grease, sweat, and dirt

3. Only oils

4. Only dirt

Grease, sweat, and dirt

What is the percentage of arches in fingerprint patterns?

1. 25%

2. 10%

3. 5%

4. 70%

5%

What type of loop exits toward the pinky finger?

1. Ulnar loops

2. Plain whorl

3. Double loop whorl

4. Radial loops

Ulnar loops

Which technique is NOT used for locating latent prints?

1. Alternate light source

2. Chemical analysis

3. Visual examination

4. Oblique lighting

Chemical analysis

What is the purpose of powder dusting in fingerprint development?

1. Enhance visibility of prints

2. Remove prints

3. Make prints invisible

4. Color the surface

Enhance visibility of prints

What type of fingerprint powder is effective on rough surfaces?

1. Regular powder

2. Fluorescent powder

3. Magnetic powder

4. Dual-use powder

Magnetic powder

Which pattern type has a minimum of 2 deltas?

1. Whorls

2. Plain arch

3. Arches

4. Loops

Whorls

What is the composition of perspiration left on surfaces?

1. 50% water, 50% solids

2. 98% water, 2% solids

3. 100% water

4. 75% water, 25% oils

98% water, 2% solids

What is the ridge counting method used for?

1. Counting all ridges

2. Counting ridges between delta and core

3. Measuring ridge thickness

4. Identifying ridge patterns

Counting ridges between delta and core

What does a tented arch have that a plain arch does not?

1. Circular pattern

2. Sharp up-thrust or spike

3. Only one delta

4. No deltas

Sharp up-thrust or spike

What is the first step in the powder technique for latent prints on multicolored surfaces?

1. Use a mask for safety

2. Select brush type

3. Choose a powder color

4. Remove excess powder

Use a mask for safety

Which powder technique is used to enhance prints on porous surfaces?

1. Leucocrystal violet

2. Amido black

3. Superglue fuming

4. Ninhydrin

Ninhydrin

What color does Ninhydrin produce when it reacts with amino acids?

1. Purple (Ruhemann’s purple)

2. Red

3. Blue

4. Green

Purple (Ruhemann’s purple)

What is the primary use of superglue fuming?

1. Stain blue-black color

2. Adhere to fingerprint residues on non-porous surfaces

3. Develop prints in dark grey color

4. Enhance prints on porous surfaces

Adhere to fingerprint residues on non-porous surfaces

What is IAFIS?

1. A method for lifting fingerprints

2. A chemical used for print development

3. Automated database for fingerprint comparisons maintained by the FBI

4. A type of fingerprint powder

Automated database for fingerprint comparisons maintained by the FBI

Which chemical is sensitive to blood proteins and stains blue-black?

1. Ninhydrin

2. Superglue

3. Amido black

4. Leucocrystal violet

Amido black

What should be done with unused powder after fingerprint processing?

1. Mix it with other powders

2. Discard it

3. Reuse it later

4. Store it for future use

Discard it

What gives fingerprints their evidentiary power?

1. Possess individual characteristics

2. They are easy to lift

3. They change over time

4. They are always visible

Possess individual characteristics

What is the best practice for maintaining integrity in an investigation?

1. Conduct objective and impartial investigations

2. Only document evidence that supports a theory

3. Ignore witness statements

4. Collect evidence without documentation

Conduct objective and impartial investigations

What is one of the best practices for maintaining integrity in an investigation?

1. Conduct objective and impartial investigations

2. Document evidence as found

3. Ignore evidence collection

4. Report information subjectively

Conduct objective and impartial investigations

What is physical evidence?

1. Items that are not related to the crime

2. Witness statements

3. Only objects found at the scene

4. Any object that can link a crime to its victim or perpetrator

Any object that can link a crime to its victim or perpetrator

What is the first step in crime scene processing?

1. Assess crime scene

2. Document crime scene

3. Debrief and release crime scene

4. Secure scene / establish evidence integrity

Secure scene / establish evidence integrity

What is the purpose of a preliminary walkthrough?

1. Mentally begin preliminary reconstruction of the events

2. Interview only the suspect

3. Ignore the scene's layout

4. Collect all evidence immediately

Mentally begin preliminary reconstruction of the events

What is the area approach in crime scene investigation?

1. A single group of investigators processes a given area

2. Multiple teams process the same area

3. Only one investigator handles the scene

4. No specific approach is used

A single group of investigators processes a given area

What should be included in PPE for crime scene safety?

1. No protection needed

2. Eye protection, disposable gloves, face mask

3. Sandals and shorts

4. Heavy jackets and hats

Eye protection, disposable gloves, face mask

What is one method to prevent contamination at a crime scene?

1. Limit access to scene(s)

2. Use non-disposable tools

3. Ignore contamination risks

4. Encourage public access

Limit access to scene(s)

What does the 4th amendment protect against?

1. Unreasonable search and seizure

2. Right to bear arms

3. Right to free speech

4. Right to a public trial

Unreasonable search and seizure

What was the outcome of Weeks v. United States?

1. Search was deemed legal

2. Evidence was admissible

3. Warrantless search violated the 4th amendment

4. No ruling was made

Warrantless search violated the 4th amendment

What is the purpose of the exclusionary rule?

1. Disallows use of illegally obtained evidence

2. Promotes police misconduct

3. Encourages illegal searches

4. Allows all evidence regardless of legality

Disallows use of illegally obtained evidence

What is the 'fruit of the poisonous tree' doctrine related to?

1. Unlawfully obtained evidence is inadmissible in court.

2. Evidence obtained with a warrant is always admissible.

3. All evidence must be presented in court regardless of how it was obtained

4. Only primary evidence is subject to exclusion.

Unlawfully obtained evidence is inadmissible in court.

What is an example of an exception to the exclusionary rule?

1. Secondary evidence rule.

2. Fruit of the poisonous tree.

3. Inevitable discovery doctrine.

4. Primary evidence rule.

Inevitable discovery doctrine.

What distinguishes primary evidence from secondary evidence?

1. Primary evidence is obtained directly from illegal conduct.

2. Secondary evidence is always admissible.

3. Both types of evidence are treated the same.

4. Primary evidence can be used in court without restrictions.

Primary evidence is obtained directly from illegal conduct.

What does the Brady Rule require prosecutors to do?

1. Disclose material, exculpatory evidence to the defense.

2. Share all evidence regardless of relevance.

3. Only provide evidence if requested.

4. Withhold evidence from the defense.

Disclose material, exculpatory evidence to the defense.

What type of evidence tends to exonerate the defendant?

1. Circumstantial evidence.

2. Impeachment evidence.

3. Exculpatory evidence.

4. Mitigating evidence.

Exculpatory evidence.

What was the outcome of Crawford v. Washington?

1. All recorded testimonies are admissible.

2. Testimonial evidence can't be used unless the witness is available for cross-examination.

3. Witnesses can be absent during trials.

4. Spousal privilege does not apply in murder cases.

Testimonial evidence can't be used unless the witness is available for cross-examination.

What is the significance of Mincey v. Arizona regarding homicide scenes?

1. Homicide scenes are NOT exceptions to the 4th amendment.

2. Police can search homicide scenes without any limitations.

3. Homicide scenes require automatic warrants.

4. All evidence at homicide scenes is admissible.

Homicide scenes are NOT exceptions to the 4th amendment.

What must be proven for the inevitable discovery doctrine to apply?

1. Prosecution can ignore initial unlawful police actions.

2. Evidence can be admitted without any conditions.

3. Evidence must be directly obtained from illegal actions.

4. Evidence would have been found through lawful means.

Evidence would have been found through lawful means.

What is the principle that states 'Every contact leaves a trace'?

1. Crawford rule

2. Hearsay rule

3. Locard’s principle

4. Roberts principle

Locard’s principle

What should be done with questioned evidence from different sources?

1. Store in a single container

2. Change gloves when handling

3. Use the same gloves

4. Mix with other evidence

Change gloves when handling

How should wet evidence be packaged?

1. In paper to prevent molding

2. In cardboard boxes

3. In glass containers

4. In plastic bags

In paper to prevent molding

What type of tape should be used for a proper seal on evidence?

1. Duct tape

2. Masking tape

3. Cellophane tape

4. Tamper-resistant tape

Tamper-resistant tape

What should be done with liquid biological samples?

1. Store in plastic

2. Keep at room temperature

3. Refrigerate them

4. Freeze them

Refrigerate them

What is a recommended method for collecting trace evidence?

1. Throwing away

2. Burning

3. Taping

4. Washing

Taping

How many control hairs should be collected from a suspect?

1. 10 pubic hairs and 20 head hairs

2. 30 pubic hairs and 50 head hairs

3. 100 pubic hairs and 100 head hairs

4. 50 pubic hairs and 30 head hairs

30 pubic hairs and 50 head hairs

What is the importance of marking packages with biological hazard stickers?

1. For decoration

2. To indicate potential contamination

3. To confuse others

4. To indicate weight

To indicate potential contamination

What should be done with dry stains on non-absorptive surfaces?

1. Wipe with a cloth

2. Use a sterile swab with sterile water

3. Leave them alone

4. Use a wet sponge

Use a sterile swab with sterile water

What is a key consideration for evidence storage facilities?

1. Open access to everyone

2. No climate control

3. Controlled access to authorized personnel

4. No tracking of personnel

Controlled access to authorized personnel

What is the purpose of fracture matching in forensic science?

1. Measuring fracture depth

2. Determining fracture age

3. Realignment of 2+ fragments to prove they were once joined from a single object

4. Identifying types of fractures

Realignment of 2+ fragments to prove they were once joined from a single object

What are considered types of questioned document evidence?

1. Biological samples

2. Photographs and videos

3. Physical fingerprints

4. Written instruments like credit cards and VINs

Written instruments like credit cards and VINs

What is a key feature of a forged document?

1. A document with no alterations

2. A written instrument that is falsely made, completed, or altered

3. A document with genuine signatures

4. A document with multiple authors

A written instrument that is falsely made, completed, or altered

Which of the following is a component of a cartridge?

1. Screwdriver

2. Nail

3. Hammer

4. Primer

Primer

What should be done when collecting GSR evidence?

1. Ignore the outermost garment

2. Use only one collection technique

3. Wait 24 hours before collection

4. Collect residue from hands within 4 hours of deposition

Collect residue from hands within 4 hours of deposition

What is a special consideration in toxicology?

1. Age of the specimen

2. Volume of the specimen

3. Timing between sample collections and testing

4. Color of the specimen

Timing between sample collections and testing

What is a sign of a clandestine lab?

1. Large amounts of household items in unusual locations

2. Clean and organized environment

3. Normal household appliances

4. Presence of law enforcement

Large amounts of household items in unusual locations

How should dry evidence be packaged?

1. In plastic zippered or heat-sealed bags

2. In loose paper

3. In cardboard boxes

4. In wet containers

In plastic zippered or heat-sealed bags

What is the definition of a clandestine lab?

1. An unlawful operation to manufacture controlled substances

2. A university chemistry lab

3. A legal research lab

4. A public health facility

An unlawful operation to manufacture controlled substances

What is an important aspect of digital evidence collection?

1. Ignoring chain of custody

2. Proper documentation of the scene

3. Minimal photography

4. Using outdated technology

Proper documentation of the scene

What should you avoid when packaging digital evidence?

1. Using cardboard boxes

2. Using plastic bags

3. Using packaging materials that produce static electricity

4. Using bubble wrap

Using packaging materials that produce static electricity

Where is DNA found in blood?

1. In white blood cells

2. In platelets

3. In red blood cells

4. In plasma

In white blood cells

What is the purpose of CODIS?

1. To link offenders or cases together

2. To track missing persons

3. To analyze fingerprints

4. To store DNA samples

To link offenders or cases together

What is a common source of DNA evidence in sexual assault cases?

1. Semen

2. Urine

3. Hair

4. Saliva

Semen

Which test detects possible blood presence?

1. Luminol test

2. Phenolphthalein test

3. Kastle-Meyer test

4. DNA test

Kastle-Meyer test

What is rigor mortis?

1. Cooling of the body

2. Pooling of blood

3. Decomposition of tissues

4. Stiffening of muscles after death

Stiffening of muscles after death

What should be done to preserve DNA evidence?

1. Leave evidence at room temperature

2. Store in plastic bags

3. Air-dry evidence

4. Freeze liquid blood in tubes

Air-dry evidence

How is body identification primarily conducted?

1. Using clothing

2. Using fingerprints

3. Using tattoos

4. Using personal effects

Using fingerprints

What is the significance of touch evidence?

1. DNA transferred by casual contact

2. Always contains a complete profile

3. Has high probative value

4. Only found on skin

DNA transferred by casual contact

What are the preliminary methods for identifying a body?

1. Medical history

2. Clothing, tattoos, personal effects

3. Photos and evidence collection

4. Fingerprints, dental records, DNA comparison

Clothing, tattoos, personal effects

Which type of wound is characterized by clean cuts?

1. Lacerations

2. Blunt force trauma

3. Gunshot wounds

4. Sharp force trauma

Sharp force trauma

What indicates a contact gunshot wound?

1. Elasticity of skin changes

2. Clean entry wound

3. Soot inside the wound

4. Stippling on skin

Soot inside the wound

What is a sign of asphyxiation in a body?

1. Chemical burns

2. Floating time in water

3. Petechiae in the eyes

4. Current marks on skin

Petechiae in the eyes

How does blood drop size change with height?

1. Only changes with velocity

2. No change in diameter

3. Smaller diameter with increased height

4. Larger diameter with increased height up to a limit

Larger diameter with increased height up to a limit

What does a lower angle of impact result in?

1. Round stains

2. No effect on shape

3. Smaller droplets

4. More elongated stain

More elongated stain