The Relationship of DNA Evidence to Prosecution Outcomes in Sexual Assault Cases

Author:

Cross Theodore P.1ORCID,Siller Laura2,Vlajnic Maja2,Alderden Megan3

Affiliation:

1. University of Illinois at Urbana-Champaign, Urbana, IL, USA

2. Northeastern University, Boston, MA, USA

3. DePaul University, Chicago, IL, USA

Abstract

This study examined the relationship between DNA evidence and outcomes of prosecution of sexual assault. Researchers coded data from prosecutor and crime laboratory files for sexual assault cases referred to prosecutors between 2005 and 2011 in a metropolitan jurisdiction in the northeastern United States. Cases with a DNA match were significantly more likely to move forward and result in conviction, even with other predictor variables statistically controlled. Analyses suggest DNA evidence contributes to case progression but also is a result of it. These findings strengthen the case for quality forensic medical examinations, investment in DNA analysis, and increased prosecutor training.

Funder

National Institute of Justice

Publisher

SAGE Publications

Subject

Law,Sociology and Political Science,Gender Studies

Reference34 articles.

1. Prosecutors’ Perspectives on Biological Evidence and Injury Evidence in Sexual Assault Cases

2. The Effects of DNA Evidence on Sexual Offence Cases in Court

3. Connecting the dots: Identifying suspected serial sexual offenders through forensic DNA evidence.

4. Predicting Sexual Assault Prosecution Outcomes

5. Cross T., Alderden M. (2018). Injury evidence, forensic evidence and the prosecution of sexual assault, United States, 2005–2011. Inter-university Consortium for Political and Social Research [distributor], 2018–04–23. https://doi.org/10.3886/ICPSR36608.v1

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