It would then be possible to determine whether that person had been involved in any unsolved crimes that are indexed. Two considerations should be kept in mind. First, the types of crimes most relevant to DNA typing are those where bodily substances tend to be left at the crime scene and where the identification of the perpetrator is in question. Secondly, the banking of DNA evidence is based on the likelihood that certain kinds of offenders tend to re-offend. The consistent element in the various U.S. State Legislative classifications is that they target sexual offenders.
Consensus ends there, however.
One U.S. jurisdiction has included all felony offenders, whether or not the person was convicted of a crime of violence. This index would contain genetic profiles of unidentified bodies or body parts. It could be searched against profiles of parents, siblings or relatives in the hope of making an identification. Any legislative scheme would have to take into account concerns over privacy. DNA typing technology, by its very nature, creates privacy concerns not relevant in other forms of forensic identification, such as fingerprinting.