Establishing a freestanding right to access DNA evidence for testing would force us to act as policymakers, and our substantive-due-process rulemaking authority would not only have to cover the right of access but a myriad of other issues. We would soon have to decide if there is a constitutional obligation to preserve forensic evidence that might later be tested. Cf. Arizona v. Youngblood, 488 U. S. 51, 56–58 (1988). If so, for how long? Would it be different for different types of evidence? Would the State also have some obligation to gather such evidence in the first place? How much, and when? No doubt there would be a miscellany of other minor directives. See, e.g., Harvey v. Horan, 285 F. 3d 298, 300–301 (CA4 2002) (Wilkinson, C. J., concurring in denial of rehearing).
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