Evidence Analysis And Processing

The program focuses on reducing violent gun crime by disrupting the cycle of gun violence by relying on forensic science and data analysis to identify, investigate, and prosecute individuals who use guns in criminal activity, and the sources of their guns. The program is rated No Effects. The program did not significantly affect homicides or aggravated assaults with a firearm but was shown to significantly reduce violent crime and robbery with a firearm.

This is a collaborative law enforcement effort to collect, manage, and analyze crime gun evidence to identify serial shooters, disrupt criminal activity, and prevent future gun violence. The program is rated Promising. Posttest gun crime cases saw statistically significant increases in the likelihood of arrest, but no statistically significant difference in the likelihood of being charged or convicted, compared with cases in the pretest period.

This program is a multidisciplinary, victim-focused approach designed to improve forensic interviewing and the continuity of care for youth who are victims of sexual abuse and assault. The program is rated Effective. The program showed a statistically significant increase in the receipt of physical health examinations and counseling referrals for treatment group youth, compared with youth in the community comparison group.

This was a policing strategy designed to reduce the severity of intimate partner violence and the rearrests of males who had been previously arrested for, or had admitted to, a first domestic violence offense and received a conditional caution. The program is rated Promising. Results indicated a statistically significant reduction in frequency and prevalence of rearrests of persons assigned to the treatment group compared with those assigned to the control group.

This program aims to improve police officers’ forensic evidence-collection techniques at burglary crime scenes to increase solved burglaries. The program also intends to improve police–victim and police–witness interactions at burglary crime scenes. The program is rated Promising. Results showed a statistically significant increase in solved burglary cases.

The program uses specially trained nurses to provide comprehensive psychological, medical, and forensic services to recent sexual assault victims in either hospital- or community-based clinic settings. The program is rated Promising. Across multiple sites, the results showed that sexual assault cases that were prosecuted following implementation of SANE had a statistically significant greater likelihood of resulting in a guilty plea or conviction.

This is an automated ballistics imaging and analysis system that populates a computerized database of digital ballistic images of bullets and casings from crime guns, to assist forensic experts in making identifications for police investigations and trials. The program is rated Effective. There was a statistically significant 6.23-fold increase in the monthly number of cold hits generated by the Ballistics Unit after implementation of the automated ballistics imaging and analysis program.

This intervention is designed to reduce distress associated with forensic rape examinations and reduce the victims’ risk of developing psychopathology and substance use after an assault. The program is rated No Effects. At the 6-month follow up, there were no statistically significant differences between the treatment and nontreatment groups in alcohol, marijuana, or hard drug use, or in symptoms of posttraumatic stress disorder, anxiety, or depression.