In addition, Congress has mandated the collection of DNA samples from "each individual in the custody of the Bureau of Prisons who is, or has been convicted of a qualifying District of Columbia offense" or any "individual under the supervision of the Agency who is on supervised release, parole, or probation who is, or has been convicted of a qualifying District of Columbia offense." 42 U.S.C.
The law mandates the collection of DNA samples from individuals in the custody of the Bureau of Prisons who have been convicted of qualifying offenses in District of Columbia or those under supervision (parole, probation) who have a history of such offenses.