The chain of custody for a sample ensures that: Response:

Question

Options

• AThe sample can be stored indefinitely
• BThe history of the sample handling is documented and traceable
• CThe sample is visually appealing
• DThe sample requires minimal storage space

• A
  14% (7)
• B
  72% (36)
• C
  4% (2)
• D
  10% (5)

Explanation

Chain of custody is a legal and procedural concept ensuring that every person who handled a sample, and every condition it was stored under, is recorded from collection to analysis. Option B is correct because the entire purpose of chain of custody is to create an unbroken, verifiable record of sample handling - establishing its integrity and admissibility in legal, scientific, or regulatory contexts.

Why the distractors are wrong:

• A is wrong because chain of custody says nothing about storage duration - samples degrade and have specific retention policies unrelated to documentation.
• C is wrong because visual appearance is irrelevant to chain of custody; integrity and documentation are what matter.
• D is wrong because storage space requirements are a physical/logistical concern, not a documentation process.

Memory tip: Think of "chain of custody" like a paper chain - each link is a person or step that touched the sample. If any link breaks (goes undocumented), the whole chain is compromised and the sample's reliability is called into question.

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