COCChain of Custody
The documented, unbroken handling trail for a specimen that keeps drug-test and lab results legally defensible.
Key facts
- Documents every handling step for a specimen.
- Uses a Custody and Control Form; mandatory in DOT testing.
- Any break can invalidate a result.
What it means
Chain of custody records every transfer and handling step for a specimen from collection to laboratory to result, using a Custody and Control Form. In DOT drug testing it is mandatory; any break can invalidate a result. A system that captures COC electronically reduces the paperwork errors that get tests thrown out.
Frequently asked
What is chain of custody in drug testing?
The documented, unbroken trail of who handled a specimen from collection to lab to result, recorded on a Custody and Control Form. It's what makes a result legally defensible.
What happens if chain of custody is broken?
A break can invalidate the test result. Capturing chain of custody electronically reduces the paperwork errors that get tests thrown out.
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