The DNA Analysis Backlog Elimination Act of 2000 (H.R. 4640, 42 U.S.C. 14135 et seq.) is a United States Act of Congress that primarily allows US states to carry out DNA analyses for use in the FBI's Combined DNA Index System and to collect and analyse DNA samples. Under the Violent Crime Control and Law Enforcement Act of 1994, 42 U.S.C. § 14132, "Congress authorized the FBI to create a national index of deoxyribonucleic acid (DNA) samples taken from convicted offenders, crime scenes and victims of crime, and unidentified human remains." In response to this congressional mandate, the FBI established the Combined DNA Index System ("CODIS"). The CODIS database provides a means for state and local forensic laboratories to share DNA profiles in an attempt to "link evidence from crime scenes for which there are no suspects to DNA samples of convicted offenders on file in the system." However, the 1994 Act was interpreted by the FBI to permit only the creation of the CODIS, not the taking of DNA samples of persons convicted of federal offenses for input into the system. Thus, "the FBI requested that Congress enact statutory authority to allow the taking of DNA samples from persons committing Federal crimes of violence, robbery, and burglary, or similar crimes in the District of Columbia or while in the military, and authorizing them to be included in CODIS." Accordingly, Congress passed the DNA Analysis Backlog Elimination Act of 2000 ("DNA Act"), 42 U.S.C. § 14135 et seq., which authorizes the "Attorney General to make grants to eligible States... to carry out, for the inclusion in the Combined DNA Index System of the Federal Bureau of Investigation, DNA analyses of samples taken from individuals convicted of a qualifying State offenses." 42 U.S.C. § 14135(a)(1). Moreover, the DNA Act provides that "the Director of the Bureau of Prisons shall collect a DNA sample from each individual in the custody of the Bureau of Prisons who is, or has been, convicted of a qualifying Federal offense" and that "the probation office responsible for the supervision under Federal law of an individual on probation, parole, or supervised release shall collect a DNA sample from each such individual who is or has been, convicted of a qualifying Federal offense." 42 U.S.C. § 15135a(a)(1)-(2). In addition, Congress has mandated the collection of DNA samples from "each individual in the custody of the Bureau of Prisons