The Results of CODIS-Hit Investigations in a Sample of Cases With Unsubmitted Sexual Assault Kits

Abstract

The use of deoxyribonucleic acid (DNA) evidence in criminal cases, especially exonerations, has received high levels of public and media attention. Studies show DNA evidence can have a significant effect on case outcomes, whereas other studies have found that police investigators rarely use DNA. Coupled with work in many cities to test large numbers of older sexual assault kits, Combined DNA Index System (CODIS) holds great promise for holding offenders accountable. Despite the potential value of DNA evidence, few studies have measured case processing after forensic matches have been made. This study examines investigation outcomes following DNA testing and forensic matches in a sample of previously untested sexual assault kits in the Houston Police Department. Of 104 CODIS-hit cases, one case resulted in new charges.