What is the primary purpose of an evidence bag in forensic science?

The primary purpose of an evidence bag in forensic science is to securely contain evidence and protect it from contamination. This is crucial for maintaining the integrity of the evidence throughout the investigation process. An evidence bag is designed to be tamper-proof and typically features seals that indicate whether it has been opened. By ensuring that evidence remains in a controlled environment, the bag helps prevent any potential contamination from external sources, which could compromise the reliability of forensic analysis.

Proper containment is essential for preserving the chain of custody, as any alteration or contamination of evidence can lead to challenges in court regarding its credibility and admissibility. Consequently, the use of evidence bags is central to forensic practices, as it directly impacts the outcomes of investigations and legal proceedings.