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Operations and Procedures:
Sample Handling
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Proper Chain-of-Custody (COC)

When samples are transferred from one person to another (for example from the PRL to the MSL), a COC form must accompany those samples. This COC form follows the samples throughout the incident beginning with sample collection through analyses and ending with disposal. A basic COC tracks the following:

  • When the sample was collected
  • When the sample was released to each individual in the process
  • Who has handled the sample
  • Who was in possession of the sample
Chain of Custody

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