MSCTC Evidence Handling & Chain of Custody 1 — Questions and Answers
Question 1: What is the primary purpose of maintaining chain of custody for evidence?
- To ensure evidence is stored in a climate-controlled environment
- To reduce the workload of evidence technicians
- To preserve the integrity and admissibility of evidence in court (Correct answer)
- To satisfy insurance requirements for seized property
Correct answer: To preserve the integrity and admissibility of evidence in court
Chain of custody ensures evidence integrity and admissibility by creating an unbroken documentary record of every person who handled the evidence.
Question 2: When should an officer begin documenting chain of custody?
- When the evidence arrives at the crime lab
- When the case is submitted to the prosecutor
- When the evidence is booked into the property room
- At the moment the evidence is first collected or seized (Correct answer)
Correct answer: At the moment the evidence is first collected or seized
Chain of custody documentation must begin at the exact moment evidence is first identified and collected to account for its condition and location from the start.
Question 3: What type of evidence requires the most careful handling due to contamination risk?
- Documentary evidence such as written records
- Physical weapons like firearms
- Biological and DNA evidence (Correct answer)
- Digital devices such as cell phones
Correct answer: Biological and DNA evidence
Biological and DNA evidence is highly susceptible to contamination, degradation, and cross-contamination, which can permanently destroy its evidentiary value.
Question 4: What information must be recorded when transferring evidence between officers?
- Only the date and case number
- The names of both parties, date, time, and reason for the transfer (Correct answer)
- Only the signature of the receiving officer
- The evidence description and storage location only
Correct answer: The names of both parties, date, time, and reason for the transfer
A complete chain of custody transfer requires identification of both the transferring and receiving officers, along with the date, time, and stated reason for the transfer.
Question 5: What is the proper way to package wet biological evidence for long-term storage?
- Seal it immediately in an airtight plastic bag to contain moisture
- Allow it to air dry, then package in paper or breathable material (Correct answer)
- Place it in a sealed glass container with a chemical preservative
- Wrap tightly in plastic wrap to prevent moisture loss
Correct answer: Allow it to air dry, then package in paper or breathable material
Wet biological evidence must be air-dried before packaging in paper because sealing it in plastic promotes mold and bacterial growth that destroys DNA.
Question 6: Under Michigan law, who is responsible for ensuring evidence retention periods are met?
- The state attorney general's office exclusively
- The individual officer who collected the evidence
- The evidence custodian under the direction of agency leadership (Correct answer)
- The court clerk assigned to the case
Correct answer: The evidence custodian under the direction of agency leadership
The agency's evidence custodian, under the supervision of department leadership, is responsible for tracking and ensuring compliance with all evidence retention requirements.
Question 7: What action should an officer take if they discover that stored evidence has been compromised or tampered with?
- Dispose of the compromised evidence and note the loss in the log
- Immediately notify the prosecutor and thoroughly document the compromise (Correct answer)
- Replace the evidence with a similar item to preserve the case
- Transfer the evidence to another location without further documentation
Correct answer: Immediately notify the prosecutor and thoroughly document the compromise
Compromised evidence must be immediately reported to the prosecutor and documented in full detail to maintain legal transparency and uphold the defendant's due process rights.
MSCTC Evidence Handling & Chain of Custody 1
What is the primary purpose of maintaining chain of custody for evidence?