ASTM E1492-11

1.1 This practice describes procedures and techniques for protecting and documenting the integrity of physical evidence with respect to suitability for scientific testing, and admissibility as evidence in criminal or civil litigation.

Prior to being presented in court, a foundation must be established showing how evidence was collected, who collected the evidence, where it was collected, who has had custody of the evidence, how the evidence has been processed, and when changes of custody have occurred.

If the procedures outlined in this practice are followed, the chain of custody with respect to the evidence while it is in the custody of the forensic laboratory will be protected.