Simply Forensic Reference Library
Evidence Integrity
Crime Scene & Evidence
Definition. The extent to which evidence has been preserved and documented so possible alteration, substitution or contamination can be assessed.
How the term is used
Seals, labels, access control, environmental conditions and continuity documentation help support integrity.
Forensic example
A uniquely numbered exhibit is received with an intact tamper-evident seal and complete transfer record.
Interpretation limitation
An intact seal is not proof that collection, sampling and testing were error-free.
References and further reading
National Institute of Justice: crime scene terminology. The explanation and example are original educational summaries; consult the cited material and current laboratory guidance for authoritative application.