Why is proper chain of custody vital in a forensic investigation?

Proper chain of custody is critical in a forensic investigation because it maintains the integrity and credibility of the evidence collected. The chain of custody refers to the process of documenting and preserving the handling of evidence from the moment it is collected until it is presented in court. Each individual who handles the evidence is recorded, along with details about the time, date, and nature of the handling. This thorough documentation serves to demonstrate that the evidence has not been altered, tampered with, or contaminated and provides a clear account of the chain of possession.

By ensuring that evidence is properly managed, the chain of custody supports its authenticity, which is foundational for its admissibility in legal proceedings. If the integrity of the chain of custody is compromised, the evidence may be deemed unreliable or inadmissible, which can significantly affect the outcome of a case.