_____________________ are materials or evidentiary samples, the sources of which are unconfirmed and which are collected at the crime scene and submitted to the crime laboratory for comparison to known samples.

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Questioned samples are materials or evidentiary samples, the sources of which are unconfirmed and which are collected at the crime scene and submitted to the crime laboratory for comparison to known samples. Exemplary samples are known samples, control samples are used to test laboratory procedures or equipment, and evidence samples can refer to any type of material collected at a crime scene.

_____________________ Are Materials or Evidentiary Samples, the Sources of Which