CSI Evidence Collection & Chain of Custody

Question 1

What is the primary purpose of maintaining a 'chain of custody' for evidence in a security investigation?

Accepted Answer

To document every person who handled the evidence from collection to presentation

Answer

To ensure evidence is stored in a locked room at all times

Answer

To limit the number of investigators who can access physical evidence

Answer

To create a backup copy of all evidence collected on scene

Question 2

When collecting physical evidence at a security incident scene, what should an investigator do first?

Accepted Answer

Document and photograph the scene before touching anything

Answer

Package all visible evidence immediately to prevent loss

Answer

Interview nearby witnesses before any evidence is collected

Answer

Contact law enforcement to take over the scene

Question 3

Which type of evidence is considered 'best evidence' in a security investigation?

Accepted Answer

The original document or item, rather than a copy

Answer

A sworn statement from the most credible witness

Answer

A surveillance video recording of the incident

Answer

A forensic report prepared by a certified expert

Question 4

What is 'transient evidence' in the context of physical security investigations?

Accepted Answer

Evidence that is temporary in nature and must be collected immediately

Answer

Evidence discovered during unrelated investigations

Answer

Background information about a suspect's past behavior

Answer

Secondary documentation created after the incident

Question 5

In a security investigation, 'circumstantial evidence' differs from 'direct evidence' in that it:

Accepted Answer

Requires inference to connect it to a conclusion rather than proving it directly

Answer

Is always less reliable than witness testimony

Answer

Cannot be used in legal or administrative proceedings

Answer

Must be collected by law enforcement rather than private investigators

Question 6

When packaging physical evidence, why should each item be placed in a separate container?

Accepted Answer

To prevent cross-contamination between evidence items

Answer

To make evidence easier to photograph at the lab

Answer

To reduce the total weight of the evidence package

Answer

To comply with fire safety regulations for evidence storage