There are various different techniques law enforcement could turn to for using DNA to try to identify the perpetrator of a crime. Today, we will be talking about one controversial such technique that has been gaining ground here in the United States.
This technique is the familial DNA search. This isn’t the usual type of DNA search in which police look at available DNA databases for a full match to DNA evidence they discovered at the scene of a crime. Rather, it involves them looking for partial matches in these databases. The idea behind this is that partial matches may end up flagging relatives of the perpetrator, and that this could help police identify perpetrators who themselves aren’t in the available DNA databases.