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Article ID: CBB678837003

Public Responses to Forensic DNA Testing Backlogs: Media Use and Understandings of Science (2015)

Clint Townson (Author)
Brewer, Paul R. (Author)
Ley, Barbara Linda (Author)

Bulletin of Science, Technology & Society
Volume: 35
Issue: 5-6
Pages: 158-165

DOI: https://doi.org/10.1177/0270467616644378

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A number of public controversies have emerged around forensic DNA testing backlogs at crime laboratories in the United States. This study provides a first look at public responses to such backlogs, using a controversy in the state of Wisconsin as a case study. First, it builds on research about public understandings of DNA and the “CSI effect” to develop a theoretical framework. Next, it explores news coverage of the Wisconsin backlog. It then uses survey data to show that public understandings of DNA, media use, and demographic factors were related to how closely respondents followed the story about the backlog and/or how much they supported increased spending on DNA testing at the crime lab. Self-reported understanding of DNA predicted following the backlog, whereas perceived reliability of DNA evidence predicted both following the backlog and support. Total television viewing was not related to either following the backlog or support, but watching crime television predicted following the backlog. Reading a newspaper and watching local TV news each predicted following the backlog; reading a newspaper also predicted support. These results suggest a number of theoretical insights into how members of the public may reason about and draw on media messages regarding DNA and DNA testing in responding to forensic DNA testing backlogs.

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