Which term describes maintaining and documenting the handling of physical evidence to ensure integrity during an investigation?

• A. Chain of Custody is the process of maintaining and documenting the handling of physical evidence to ensure its integrity during an investigation.
• B. Scene Investigation is the examination of the location where a death occurred to gather evidence and understand the circumstances surrounding the death.
• C. Medical History Review is the examination of a deceased individual's medical records to identify pre-existing conditions that may have contributed to death.
• D. Death Investigation Protocols are the standard procedures followed by medical examiners and coroners to ensure thorough and accurate investigations.

Answer: (A)

Chain of custody is the practice of maintaining and documenting every transfer, handling, and condition of physical evidence from collection through analysis to presentation. It begins at the moment evidence is collected, is placed in tamper-evident packaging, and is logged with identifiers, times, and responsible personnel. Each movement or change in the evidence is recorded, creating an unbroken, verifiable trail. This documentation protects the evidence from tampering or contamination and supports its admissibility in court by showing it remained authentic and unaltered. The other terms refer to broader aspects of the investigation—scene examination, medical record review, or standard procedural guidelines—rather than the careful management and record-keeping of the physical evidence itself.