Their Internet Crimes Against Children department will have made a disk image in EnCase of the content and filed it in their system before handing it to the FBI.    So I think the intent was never for Delaware to do anything with it but to create a copy that can be subpoenaed later to verify that the drive the FBI is working with, the one punted to them and the ones they had prior to the reveal, are all identical with no alterations otherwise they can prove foul play.    More about establishing proper chain of custody than expecting Delaware to do anything.