Familial Searching Process Description

This process utilizes both a database of DNA profiles from previous offenders and the Y-S-T-R of the unknown sample. The Y-S-T-R, or Y chromosome short tandem repeat, is part of the male chromosome DNA found in the nuclei of cells in a male person’s body. The offender database is a pool of anonymous DNA profiles from previous offenders. Software filters the pool to a short list of anonymous candidates based on distinct genetic characteristics. The Y-S-T-R of the unknown sample is compared with the list of profiles in the offender database. The first of 2 possible results is that the Y-S-T-R comparison generates a lead, by corresponding to a particular offender profile from the database; meaning, the unknown sample could be from a male relative of that offender. The second possible result of the comparison indicates that there is no correlation between the original, unknown sample and any of the records in the offender database. Meaning, the unknown sample is from an individual unrelated to the offenders in the database.