Intimate body samples collected from a suspect should be destroyed upon the decision that no further action will be taken or upon acquittal, whichever is sooner.
Why does this idea matter?
Intimate body samples should not be held indefinitely on a database. It provides the opportunity for abuse by persons and/or authorities with access to that database.
Open cases, where such evidence has been collected at the scene of a crime and/or from a victim and no offender has been prosecuted provides the only requirement for those samples to be retained. This allows the samples of a suspect to be matched against them.