The Federal Bureau of Investigation facilitates the use of a national DNA database, which is called the Combined DNA Index System (CODIS)
database. It can be used to search profiles within the state of Oklahoma and throughout the United States. CODIS is a useful tool in providing
investigative leads to law enforcement agencies throughout the state. It is particularly useful when there are no suspects or a suspect has not yet
been developed. CODIS is also providing useful information on cold cases.