FaSTR DNA: A new expert system for forensic DNA analysis

The automation of DNA profile analysis of reference and crime samples continues to gain pace driven in part by a realisation by the criminal justice system of the positive impact DNA technology can have in aiding in the solution of crime and the apprehension of suspects. Expert systems to automate the profile analysis component of the process are beginning to be developed. In this paper, we report the validation of a new expert system FaSTR DNA, an expert system suitable for the analysis of DNA profiles from single source reference samples and from crime samples. We compare the performance of FaSTR DNA with that of other equivalent systems, GeneMapper™ ID v3.2 (Applied Biosystems, Foster City, CA) and FSS-i³ v4 (The Forensic Science Service^® DNA expert System Suite FSS-i³, Forensic Science Service, Birmingham, UK) with GeneScan^® Analysis v3.7/Genotyper^® v3.7 software (Applied Biosystems, Foster City, CA, USA) with manual review. We have shown that FaSTR DNA provides an alternative solution to automating DNA profile analysis and is appropriate for implementation into forensic laboratories. The FaSTR DNA system was demonstrated to be comparable in performance to that of GeneMapper™ ID v3.2 and superior to that of FSS-i³ v4 for the analysis of DNA profiles from crime samples.     

Fair Treatment or Preferred Outcome? The Impact of Police Behavior on Victim Reports of Domestic Violence Incidents

This research is an exploratory test of two hypotheses emerging from debates about how police behavior may influence domestic violence victim reporting. From a procedural justice perspective, victims should be more apt to report victimization when previous encounters with police are viewed as procedurally fair. From a distributive justice perspective, denying victims their preferred outcome may discourage future police utilization. We find that satisfaction with police is related to both distributive and procedural justice but that re-utilization of police is conditioned by preferred outcome. Specifically, if the offender was arrested in accordance with victim preference, the victim is significantly more apt to utilize police in the future.