Why is the chain of custody critical in evidence handling?

The chain of custody is essential in evidence handling because it maintains the integrity and reliability of evidence throughout the legal process. By establishing a clear and documented record of who collected, handled, analyzed, and stored the evidence, it ensures that the evidence has not been tampered with or altered in any way. This documentation serves as a safeguard against challenges regarding the authenticity of the evidence in court, making it admissible and credible. A strong chain of custody reinforces the credibility of the evidence, supporting the prosecution or defense's case as it undergoes examination in a judicial setting. This foundational principle is critical for upholding the rule of law and ensuring fair trial rights.