Amends GS 15A-268(a7), clarifying that the custodial agency must, upon written request by the defendant, prepare an inventory of biological evidence relevant to the defendant’s case that is in the custodial agency’s custody (currently, must prepare inventory of biological evidence that has been preserved pursuant to the statute). Requires the custodial agency to provide the defendant with a copy of the court order or written directive, if the evidence was destroyed through such an order. Amends GS 15A-268(a1), clarifying that a custodial agency must preserve physical evidence, regardless of the date of collection, that is reasonably likely to contain biological evidence collected during a criminal investigation or prosecution.