Which choice best explains class evidence?

Class evidence is material that can be linked to a group of items or people.

Class evidence is always physical in nature.

Class evidence can only be used in criminal cases.

Class evidence is unique to a specific item.

Which of the following best represents class evidence from a crime scene?

Blood type identified from a crime scene.

a pistol found at the crime scene

a tiny cotton fiber found at the crime scene

Which of the following best identifies individual evidence taken from a crime scene?

Car color identified in the getaway car at a crime scene

What is the police officers' role at a crime scene?

To secure the crime scene, preserve evidence, and assist in the investigation.

To provide legal advice to the suspects present.

To collect payment from witnesses for their statements.

To investigate the crime and make arrests immediately.

Why is it important to maintain chain of custody for evidence collected at a crime scene?

It is important to maintain chain of custody to ensure the integrity and admissibility of evidence in legal proceedings.

To reduce the amount of evidence collected at a crime scene.

To ensure that evidence is destroyed after the investigation.

To allow anyone to handle the evidence without restrictions.

What is the best way to maintain chain of custody with evidence?

Document and secure all evidence transfers and maintain a detailed log.

Store evidence in unsecured locations.

Only verbally communicate evidence transfers.

Ignore evidence handling procedures entirely.

What is the role of a medical examiner at a crime scene?

The role of a medical examiner at a crime scene is to determine the cause of death and collect evidence.

To arrest suspects at the crime scene.

To provide legal representation for the accused.

To conduct interviews with witnesses.

How should wet evidence (like blood on a damp shirt) best be collected at a crime scene?

Use sterile swabs or gauze to absorb the blood and place in a clean, dry container.

Wipe the blood with a cloth and throw it away.

Spray the blood with water to dilute it before collection.

Why is it important to sketch a crime scene to scale?

It is important to sketch a crime scene to scale to ensure accurate representation of distances and relationships between objects.

To provide a rough estimate of the crime scene without precision.

To confuse investigators about the actual layout.

To create a colorful artistic representation of the scene.

Sort the following evidence into the correct type of evidence.

Fingerprints Found at the Crime Scene

DNA Evidence Linking the Suspect to the Scene

What is the main difference between observation and inference?

An observation is what you directly notice or measure; an inference is what you conclude from that evidence.

An observation is a conclusion from evidence; an inference is what you directly notice or measure.

An observation is a prediction about events; an inference is a recorded measurement of those events.

An observation and an inference are identical because both describe directly measured evidence.

Explain what is meant by Locard's principal of exchange.

Locard's principle of exchange means that every contact leaves a trace; contact between a person, object, or place results in mutual transfer of evidence.

Locard's principle means that only deliberate actions result in the transfer of forensic evidence.

Locard's principle means that contact between objects leaves no physical evidence behind.

Locard's principle means that evidence is created only when a person remains at a scene for a long period.

Why is a fingerprint not considered biological evidence?

A fingerprint is not biological evidence because the ridge pattern itself is physical impression evidence, not biological material.

A fingerprint is biological evidence because it contains a person’s unique genetic identity.

A fingerprint is biological evidence because skin cells are always visible in every ridge pattern.

A fingerprint is not biological evidence because it is formed only by chemical residue, not physical contact.

Crime Scene Investigation and Evidence Collection

Authored by Daniel Rosenbaum

Science

9th - 12th Grade

Used 12+ times

Crime Scene Investigation and Evidence Collection

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22 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following best describes Locard's Principle of Exchange?

Contact between objects has no effect on their properties.

Material transfer only occurs in one direction.

Whenever two objects come into contact, there is a transfer of material between them.

Objects do not interact with each other.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following might be an example of trace evidence?

A weapon used in the crime.

dash cam footage

A witness statement about the event.

Hair or fibers found at a crime scene.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Who was Dr. Edmund Locard?

Dr. Edmund Locard was a famous painter.

Dr. Edmund Locard was a French criminologist and the founder of forensic science.

Dr. Edmund Locard was a politician in the 19th century.

Dr. Edmund Locard was a renowned physicist.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following would constitute direct evidence?

A police report summarizing events.

A hearsay statement from a friend.

A newspaper article discussing the incident.

Eyewitness testimony or a video recording.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following would constitute circumstantial evidence?

A witness testifying about the suspect's alibi.

Finding a suspect's fingerprints at a crime scene.

A video recording of the crime in progress.

A confession made by the suspect to the police.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following would constitute biological circumstantial evidence?

Witness testimony about the crime

Surveillance footage of the area

Fingerprint analysis from a suspect

DNA evidence found at a crime scene

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following would constitute circumstantial physical evidence?

A police report summarizing the incident.

A video recording of the crime scene from a distance.

Fingerprints found at a crime scene.

A witness testimony about the suspect's alibi.

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