Representative Sample
Definition
A portion drawn from a bulk seizure in a way that is statistically or procedurally likely to reflect the composition of the whole. Narcotics statutes require representative sampling precisely because only the sampled portion is analysed; the entire bulk cannot be destroyed in testing.
- Domain
- Narcotics forensic chemistry law
- Purpose
- Reflect composition of bulk seizure
- Reason required
- Bulk cannot be fully destroyed testing
- Governs
- Sampling protocol under narcotics statutes
Common questions
Why can't the entire seized quantity be tested directly?+
Chemical testing consumes the material tested, so analysing the whole seizure would destroy the evidence itself, which is why courts and statutes require a defensible sampling method instead.
What makes a sample legally representative rather than just convenient?+
The sampling method must be statistically or procedurally sound enough that the result on the sample can be relied on to describe the untested remainder, rather than left to individual discretion.
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