Studies and local police jurisdictions have documented the existence of potentially valuable forensic evidence in sexual assault kits that have never been submitted to a crime laboratory for examination. The failure to analyze such potential evidence is concerning, because this may have prohibited case advancement in the criminal justice system. In examining a sample of unsubmitted sexual assault kits, the current study found that subsequent testing of these kits yielded no evidence that had a significant impact on the cases. (Publisher abstract modified)