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Tracking the violent criminal offender through DNA typing profiles--a national database system concept
F S Baechtel1, K L Monson, G E Forsen
1Forensic Science Research and Training Section, FBI Laboratory, Quantico, Virginia.
Abstract:
Implementation of standard methods for the conduct of restriction fragment length polymorphism analysis into the protocols of United States crime laboratories offers an unprecedented opportunity for the establishment of a national computer database system to enable interchange of DNA typing information. The FBI Laboratory, in concert with crime laboratory representatives, has taken the initiative in planning and implementing such a database system. The Combined DNA Index System (CODIS) will be composed of three sub-indices: a statistical database, which will contain frequencies of DNA fragment alleles in various population groups; an investigative database which will enable linkage of violent crimes through a common subject; and a convicted felon database that will serve to maintain DNA typing profiles for comparison to profiles developed from violent crimes where the suspect may be unknown.
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