Chain of custody

{
  "id": "MLC-T-CHM-001844",
  "term": "Chain of custody",
  "field": "Chemistry",
  "definition": "A documented record detailing the possession and transfer of a sample from the moment of collection to its final disposal. It provides an unbroken trail identifying every individual who has handled the sample, the date and time of each transfer, and the purpose of the handling. This rigorous documentation is required in legal proceedings and regulated testing to demonstrate that the sample has not been altered or substituted.",
  "subject": "Chemistry and Human Health",
  "references": [
    "PAC, 2007, 79, 1153. 'Glossary of terms used in toxicology, 2nd edition (IUPAC Recommendations 2007)' on page 1187 (https://doi.org/10.1351/pac200779071153)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/chain-of-custody/"
}