ABMDI (Forensic Certification) Chain of Custody Practice Questions and
Answers Updated 2026 | Complete Medicolegal Death Investigation Study
Guide with Verified Questions, Detailed Rationales, Evidence Collection &
Preservation, Chain of Custody Documentation, Property Control
Procedures, Scene Security, Evidence Transfers, Legal Admissibility
Standards, Forensic Integrity & ABMDI Certification Exam Prep
Question 1: What is the primary purpose of the chain of custody in forensic
investigations? A. To determine the cause of death B. To document the handling and
transfer of evidence C. To identify the primary suspect D. To secure the perimeter of a
scene CORRECT ANSWER: B. To document the handling and transfer of evidence
Rationale: Chain of custody provides a chronological documentation trail showing the
seizure, custody, control, transfer, analysis, and disposition of physical evidence.
Question 2: Who is responsible for maintaining the chain of custody? A. Only the
lead detective B. Only the medical examiner C. Anyone who handles the evidence D.
Only the laboratory technician CORRECT ANSWER: C. Anyone who handles the
evidence Rationale: Every individual who takes possession of evidence must document
their involvement to maintain an unbroken and legally sound chain.
Question 3: When does the chain of custody begin? A. When the evidence arrives at
the lab B. When the evidence is presented in court C. When the evidence is first
identified and collected D. When the autopsy is completed CORRECT ANSWER: C.
When the evidence is first identified and collected Rationale: The chain of custody
starts the moment an item is recognized as evidence and is collected at the scene or
during an examination.
Question 4: What is the most critical consequence of a broken chain of custody? A.
Delayed autopsy report B. Inadmissibility of the evidence in court C. Loss of funding for
the agency D. Requirement for a new investigation CORRECT ANSWER: B.
Inadmissibility of the evidence in court Rationale: A broken chain of custody casts
doubt on the integrity of the evidence, often leading a judge to rule it inadmissible.
Question 5: Which document is primarily used to track the chain of custody? A.
Autopsy protocol B. Evidence log or chain of custody form C. Death certificate D. Scene
sketch CORRECT ANSWER: B. Evidence log or chain of custody form Rationale: An
evidence log specifically records every transfer, access, and location change of an item
of evidence.
Question 6: What must be included on every evidence label? A. The suspect's name
only B. Initials of the lab director C. Case number, item number, date, and collector's
initials D. The time of death CORRECT ANSWER: C. Case number, item number, date,
and collector's initials Rationale: Proper labeling ensures the item can be uniquely
identified and traced back to the specific case and collector.
,ABMDI (Forensic Certification) Chain of Custody Practice Questions and
Answers Updated 2026 | Complete Medicolegal Death Investigation Study
Guide with Verified Questions, Detailed Rationales, Evidence Collection &
Preservation, Chain of Custody Documentation, Property Control
Procedures, Scene Security, Evidence Transfers, Legal Admissibility
Standards, Forensic Integrity & ABMDI Certification Exam Prep
Question 7: How should wet biological evidence be packaged? A. In an airtight
plastic bag B. In a breathable paper container C. In a glass jar with water D. In a metal
tin CORRECT ANSWER: B. In a breathable paper container Rationale: Breathable
packaging prevents the growth of mold and bacteria, which can degrade DNA.
Question 8: Who is ultimately responsible for the evidence collected at a death
scene? A. The first responding officer B. The lead investigator or medical death
investigator C. The funeral director D. The district attorney CORRECT ANSWER: B. The
lead investigator or medical death investigator Rationale: The lead investigator
oversees the scene and ensures all evidence is properly collected, documented, and
maintained.
Question 9: What should you do if you notice a seal on an evidence bag is broken?
A. Ignore it if the item is inside B. Repackage it without documentation C. Document the
break and notify a supervisor immediately D. Throw the evidence away CORRECT
ANSWER: C. Document the break and notify a supervisor immediately Rationale:
Any compromise in the seal must be documented and reported to maintain
transparency and investigate the breach.
Question 10: Why is it important to limit the number of people who handle
evidence? A. To save time B. To reduce the risk of contamination or loss C. To keep the
evidence log short D. To protect the privacy of the investigators CORRECT ANSWER: B.
To reduce the risk of contamination or loss Rationale: Fewer handlers mean fewer
opportunities for the evidence to be contaminated, lost, or mishandled.
Question 11: When transferring evidence to another person, what must occur? A. A
verbal handover only B. Both parties must sign and date the chain of custody form C.
The evidence must be re-photographed D. The evidence must be repackaged CORRECT
ANSWER: B. Both parties must sign and date the chain of custody form Rationale:
Signatures and dates provide legal proof of the exact time and individuals involved in
the transfer.
Question 12: Where should evidence be stored when not in use? A. In the
investigator's personal vehicle B. In a secure, access-controlled evidence room C. On
the investigator's desk D. In a shared public office CORRECT ANSWER: B. In a secure,
access-controlled evidence room Rationale: Secure storage prevents unauthorized
access, tampering, theft, or environmental damage.
,ABMDI (Forensic Certification) Chain of Custody Practice Questions and
Answers Updated 2026 | Complete Medicolegal Death Investigation Study
Guide with Verified Questions, Detailed Rationales, Evidence Collection &
Preservation, Chain of Custody Documentation, Property Control
Procedures, Scene Security, Evidence Transfers, Legal Admissibility
Standards, Forensic Integrity & ABMDI Certification Exam Prep
Question 13: What is the best way to package a firearm found at a scene? A. Unload
it and place it in a cardboard box B. Leave it loaded for quick access C. Place it in a
plastic bag to protect fingerprints D. Clean it before packaging CORRECT ANSWER: A.
Unload it and place it in a cardboard box Rationale: Firearms must be unloaded for
safety and packaged in a rigid container like a cardboard box to preserve trace evidence
and prevent damage.
Question 14: If a death investigator collects a blood sample, where should it be
stored? A. At room temperature B. In a refrigerator or cooler with ice packs C. In direct
sunlight D. In a sealed plastic bag in a warm room CORRECT ANSWER: B. In a
refrigerator or cooler with ice packs Rationale: Biological fluids like blood must be
kept cool to prevent decomposition and preserve the integrity of DNA and toxicology.
Question 15: What should be done with the original chain of custody form? A. Shred
it after the trial B. Keep it in the official case file C. Give it to the family of the deceased
D. Post it online CORRECT ANSWER: B. Keep it in the official case file Rationale: The
original form is a permanent legal record that must be preserved in the case file.
Question 16: Which of the following is considered trace evidence? A. A bloody knife
B. Hair and fibers C. A firearm D. A suicide note CORRECT ANSWER: B. Hair and fibers
Rationale: Trace evidence consists of small, often microscopic materials like hair,
fibers, glass, or paint.
Question 17: How should a suicide note be handled? A. Fold it to fit in an envelope B.
Place it in a plastic protective sleeve or paper envelope without folding C. Wipe it for
fingerprints D. Read it aloud to the family CORRECT ANSWER: B. Place it in a plastic
protective sleeve or paper envelope without folding Rationale: Documents should be
protected from folding, moisture, and fingerprints to preserve handwriting and potential
DNA.
Question 18: What is the role of the medical examiner regarding evidence? A. To
collect evidence at the scene only B. To collect and document evidence during the
autopsy C. To store evidence permanently D. To testify in every trial CORRECT
ANSWER: B. To collect and document evidence during the autopsy Rationale: The
medical examiner collects internal and external evidence (e.g., bullets, tissue) during
the autopsy and maintains its chain.
Question 19: If evidence is sent to an external laboratory, what must accompany it?
A. A copy of the autopsy report B. A detailed submission form and chain of custody
, ABMDI (Forensic Certification) Chain of Custody Practice Questions and
Answers Updated 2026 | Complete Medicolegal Death Investigation Study
Guide with Verified Questions, Detailed Rationales, Evidence Collection &
Preservation, Chain of Custody Documentation, Property Control
Procedures, Scene Security, Evidence Transfers, Legal Admissibility
Standards, Forensic Integrity & ABMDI Certification Exam Prep
document C. A photo of the scene D. A check for payment CORRECT ANSWER: B. A
detailed submission form and chain of custody document Rationale: The lab needs
specific instructions and a legal record of the transfer to process the evidence correctly.
Question 20: What happens if an investigator forgets to sign the evidence log? A.
Nothing, as long as they remember later B. The evidence is automatically thrown out C.
It creates a gap in the chain of custody that must be explained D. The investigator is
fired immediately CORRECT ANSWER: C. It creates a gap in the chain of custody that
must be explained Rationale: Missing signatures create a break in the chain that
defense attorneys can exploit, requiring the investigator to testify and explain the
omission.
Question 21: Which of the following best describes "direct transfer" of evidence? A.
Mailing evidence via USPS B. Handing evidence directly from one authorized person to
another C. Leaving evidence in a secure locker D. Dropping evidence at the lab front
desk CORRECT ANSWER: B. Handing evidence directly from one authorized person
to another Rationale: Direct transfer allows both parties to sign the log simultaneously,
ensuring a seamless transition of custody.
Question 22: Why must evidence bags be sealed with tamper-evident tape? A. To
make the bag look professional B. To ensure any unauthorized opening is immediately
visible C. To keep the bag warm D. To prevent the bag from tearing CORRECT ANSWER:
B. To ensure any unauthorized opening is immediately visible Rationale: Tamper-
evident tape shows if the package has been opened or compromised since it was
sealed.
Question 23: What is the correct procedure for packaging clothing with wet
bloodstains? A. Fold the stained area inward B. Air dry the clothing completely before
packaging in paper C. Place it in a plastic bag while wet D. Spray it with a preservative
CORRECT ANSWER: B. Air dry the clothing completely before packaging in paper
Rationale: Wet biological evidence must be air-dried to prevent mold growth, which
destroys DNA.
Question 24: When photographing evidence at a scene, what should be included in
the frame? A. Only the evidence B. The evidence, a ruler/scale, and a case identifier C.
The investigator's face D. The surrounding neighborhood CORRECT ANSWER: B. The
evidence, a ruler/scale, and a case identifier Rationale: Including a scale provides
size context, and the case identifier links the photo to the specific investigation.
Answers Updated 2026 | Complete Medicolegal Death Investigation Study
Guide with Verified Questions, Detailed Rationales, Evidence Collection &
Preservation, Chain of Custody Documentation, Property Control
Procedures, Scene Security, Evidence Transfers, Legal Admissibility
Standards, Forensic Integrity & ABMDI Certification Exam Prep
Question 1: What is the primary purpose of the chain of custody in forensic
investigations? A. To determine the cause of death B. To document the handling and
transfer of evidence C. To identify the primary suspect D. To secure the perimeter of a
scene CORRECT ANSWER: B. To document the handling and transfer of evidence
Rationale: Chain of custody provides a chronological documentation trail showing the
seizure, custody, control, transfer, analysis, and disposition of physical evidence.
Question 2: Who is responsible for maintaining the chain of custody? A. Only the
lead detective B. Only the medical examiner C. Anyone who handles the evidence D.
Only the laboratory technician CORRECT ANSWER: C. Anyone who handles the
evidence Rationale: Every individual who takes possession of evidence must document
their involvement to maintain an unbroken and legally sound chain.
Question 3: When does the chain of custody begin? A. When the evidence arrives at
the lab B. When the evidence is presented in court C. When the evidence is first
identified and collected D. When the autopsy is completed CORRECT ANSWER: C.
When the evidence is first identified and collected Rationale: The chain of custody
starts the moment an item is recognized as evidence and is collected at the scene or
during an examination.
Question 4: What is the most critical consequence of a broken chain of custody? A.
Delayed autopsy report B. Inadmissibility of the evidence in court C. Loss of funding for
the agency D. Requirement for a new investigation CORRECT ANSWER: B.
Inadmissibility of the evidence in court Rationale: A broken chain of custody casts
doubt on the integrity of the evidence, often leading a judge to rule it inadmissible.
Question 5: Which document is primarily used to track the chain of custody? A.
Autopsy protocol B. Evidence log or chain of custody form C. Death certificate D. Scene
sketch CORRECT ANSWER: B. Evidence log or chain of custody form Rationale: An
evidence log specifically records every transfer, access, and location change of an item
of evidence.
Question 6: What must be included on every evidence label? A. The suspect's name
only B. Initials of the lab director C. Case number, item number, date, and collector's
initials D. The time of death CORRECT ANSWER: C. Case number, item number, date,
and collector's initials Rationale: Proper labeling ensures the item can be uniquely
identified and traced back to the specific case and collector.
,ABMDI (Forensic Certification) Chain of Custody Practice Questions and
Answers Updated 2026 | Complete Medicolegal Death Investigation Study
Guide with Verified Questions, Detailed Rationales, Evidence Collection &
Preservation, Chain of Custody Documentation, Property Control
Procedures, Scene Security, Evidence Transfers, Legal Admissibility
Standards, Forensic Integrity & ABMDI Certification Exam Prep
Question 7: How should wet biological evidence be packaged? A. In an airtight
plastic bag B. In a breathable paper container C. In a glass jar with water D. In a metal
tin CORRECT ANSWER: B. In a breathable paper container Rationale: Breathable
packaging prevents the growth of mold and bacteria, which can degrade DNA.
Question 8: Who is ultimately responsible for the evidence collected at a death
scene? A. The first responding officer B. The lead investigator or medical death
investigator C. The funeral director D. The district attorney CORRECT ANSWER: B. The
lead investigator or medical death investigator Rationale: The lead investigator
oversees the scene and ensures all evidence is properly collected, documented, and
maintained.
Question 9: What should you do if you notice a seal on an evidence bag is broken?
A. Ignore it if the item is inside B. Repackage it without documentation C. Document the
break and notify a supervisor immediately D. Throw the evidence away CORRECT
ANSWER: C. Document the break and notify a supervisor immediately Rationale:
Any compromise in the seal must be documented and reported to maintain
transparency and investigate the breach.
Question 10: Why is it important to limit the number of people who handle
evidence? A. To save time B. To reduce the risk of contamination or loss C. To keep the
evidence log short D. To protect the privacy of the investigators CORRECT ANSWER: B.
To reduce the risk of contamination or loss Rationale: Fewer handlers mean fewer
opportunities for the evidence to be contaminated, lost, or mishandled.
Question 11: When transferring evidence to another person, what must occur? A. A
verbal handover only B. Both parties must sign and date the chain of custody form C.
The evidence must be re-photographed D. The evidence must be repackaged CORRECT
ANSWER: B. Both parties must sign and date the chain of custody form Rationale:
Signatures and dates provide legal proof of the exact time and individuals involved in
the transfer.
Question 12: Where should evidence be stored when not in use? A. In the
investigator's personal vehicle B. In a secure, access-controlled evidence room C. On
the investigator's desk D. In a shared public office CORRECT ANSWER: B. In a secure,
access-controlled evidence room Rationale: Secure storage prevents unauthorized
access, tampering, theft, or environmental damage.
,ABMDI (Forensic Certification) Chain of Custody Practice Questions and
Answers Updated 2026 | Complete Medicolegal Death Investigation Study
Guide with Verified Questions, Detailed Rationales, Evidence Collection &
Preservation, Chain of Custody Documentation, Property Control
Procedures, Scene Security, Evidence Transfers, Legal Admissibility
Standards, Forensic Integrity & ABMDI Certification Exam Prep
Question 13: What is the best way to package a firearm found at a scene? A. Unload
it and place it in a cardboard box B. Leave it loaded for quick access C. Place it in a
plastic bag to protect fingerprints D. Clean it before packaging CORRECT ANSWER: A.
Unload it and place it in a cardboard box Rationale: Firearms must be unloaded for
safety and packaged in a rigid container like a cardboard box to preserve trace evidence
and prevent damage.
Question 14: If a death investigator collects a blood sample, where should it be
stored? A. At room temperature B. In a refrigerator or cooler with ice packs C. In direct
sunlight D. In a sealed plastic bag in a warm room CORRECT ANSWER: B. In a
refrigerator or cooler with ice packs Rationale: Biological fluids like blood must be
kept cool to prevent decomposition and preserve the integrity of DNA and toxicology.
Question 15: What should be done with the original chain of custody form? A. Shred
it after the trial B. Keep it in the official case file C. Give it to the family of the deceased
D. Post it online CORRECT ANSWER: B. Keep it in the official case file Rationale: The
original form is a permanent legal record that must be preserved in the case file.
Question 16: Which of the following is considered trace evidence? A. A bloody knife
B. Hair and fibers C. A firearm D. A suicide note CORRECT ANSWER: B. Hair and fibers
Rationale: Trace evidence consists of small, often microscopic materials like hair,
fibers, glass, or paint.
Question 17: How should a suicide note be handled? A. Fold it to fit in an envelope B.
Place it in a plastic protective sleeve or paper envelope without folding C. Wipe it for
fingerprints D. Read it aloud to the family CORRECT ANSWER: B. Place it in a plastic
protective sleeve or paper envelope without folding Rationale: Documents should be
protected from folding, moisture, and fingerprints to preserve handwriting and potential
DNA.
Question 18: What is the role of the medical examiner regarding evidence? A. To
collect evidence at the scene only B. To collect and document evidence during the
autopsy C. To store evidence permanently D. To testify in every trial CORRECT
ANSWER: B. To collect and document evidence during the autopsy Rationale: The
medical examiner collects internal and external evidence (e.g., bullets, tissue) during
the autopsy and maintains its chain.
Question 19: If evidence is sent to an external laboratory, what must accompany it?
A. A copy of the autopsy report B. A detailed submission form and chain of custody
, ABMDI (Forensic Certification) Chain of Custody Practice Questions and
Answers Updated 2026 | Complete Medicolegal Death Investigation Study
Guide with Verified Questions, Detailed Rationales, Evidence Collection &
Preservation, Chain of Custody Documentation, Property Control
Procedures, Scene Security, Evidence Transfers, Legal Admissibility
Standards, Forensic Integrity & ABMDI Certification Exam Prep
document C. A photo of the scene D. A check for payment CORRECT ANSWER: B. A
detailed submission form and chain of custody document Rationale: The lab needs
specific instructions and a legal record of the transfer to process the evidence correctly.
Question 20: What happens if an investigator forgets to sign the evidence log? A.
Nothing, as long as they remember later B. The evidence is automatically thrown out C.
It creates a gap in the chain of custody that must be explained D. The investigator is
fired immediately CORRECT ANSWER: C. It creates a gap in the chain of custody that
must be explained Rationale: Missing signatures create a break in the chain that
defense attorneys can exploit, requiring the investigator to testify and explain the
omission.
Question 21: Which of the following best describes "direct transfer" of evidence? A.
Mailing evidence via USPS B. Handing evidence directly from one authorized person to
another C. Leaving evidence in a secure locker D. Dropping evidence at the lab front
desk CORRECT ANSWER: B. Handing evidence directly from one authorized person
to another Rationale: Direct transfer allows both parties to sign the log simultaneously,
ensuring a seamless transition of custody.
Question 22: Why must evidence bags be sealed with tamper-evident tape? A. To
make the bag look professional B. To ensure any unauthorized opening is immediately
visible C. To keep the bag warm D. To prevent the bag from tearing CORRECT ANSWER:
B. To ensure any unauthorized opening is immediately visible Rationale: Tamper-
evident tape shows if the package has been opened or compromised since it was
sealed.
Question 23: What is the correct procedure for packaging clothing with wet
bloodstains? A. Fold the stained area inward B. Air dry the clothing completely before
packaging in paper C. Place it in a plastic bag while wet D. Spray it with a preservative
CORRECT ANSWER: B. Air dry the clothing completely before packaging in paper
Rationale: Wet biological evidence must be air-dried to prevent mold growth, which
destroys DNA.
Question 24: When photographing evidence at a scene, what should be included in
the frame? A. Only the evidence B. The evidence, a ruler/scale, and a case identifier C.
The investigator's face D. The surrounding neighborhood CORRECT ANSWER: B. The
evidence, a ruler/scale, and a case identifier Rationale: Including a scale provides
size context, and the case identifier links the photo to the specific investigation.
