Ace the 2026 Criminal Investigator Training Exam 1 – Unleash Your Inner Detective!

Maintaining evidence integrity hinges on creating a complete, auditable record of every transfer, handling, and condition of the item from collection to presentation. This is achieved through chain-of-custody documentation. By documenting who collected the evidence, when and where it was collected, every person who handled it, each transfer or transfer location, and the seal or packaging status, you establish a traceable path that can be inspected at any point. This unbroken, chronological trail helps prove the evidence hasn’t been tampered with, altered, or contaminated, and it supports admissibility in court.

Physical security like a locked cabinet is valuable, but without the accompanying documentation, there’s no verifiable history of access or changes to the item. Destroying non-essential items would discard potential corroborating material and undermine the integrity and admissibility of the evidence. Posting details on social media would expose the case to leaks and contamination and would compromise confidentiality and the integrity of the evidence chain. The chain-of-custody log is the best practice because it provides the required accountability and traceability from collection all the way to presentation.