Journal of Police and Criminal Psychology

, Volume 27, Issue 2, pp 179–192

Secondary Confessions, Expert Testimony, and Unreliable Testimony

  • Jeffrey S. Neuschatz
  • Miranda L. Wilkinson
  • Charles A. Goodsell
  • Stacy A. Wetmore
  • Deah S. Quinlivan
  • Nicholaos J. Jones
Article

DOI: 10.1007/s11896-012-9102-x

Cite this article as:
Neuschatz, J.S., Wilkinson, M.L., Goodsell, C.A. et al. J Police Crim Psych (2012) 27: 179. doi:10.1007/s11896-012-9102-x

Abstract

Two experiments examined two potential safeguards intended to protect accused persons against unreliable testimony from cooperating witnesses. Participants in both experiments read a trial transcript where secondary confession evidence was presented from either a jailhouse informant (Experiment 1 and 2) or an accomplice witness (Experiment 2). In Experiment 1, testimony history was manipulated so that participants were informed that the jailhouse informant had testified as an informant in 0, 5, or 20 previous cases. In Experiment 2, participants were exposed to an expert who testified about the unreliable nature of testimony from cooperating witnesses. The results of both experiments demonstrated that participants who were exposed to secondary confession evidence were significantly more likely to vote guilty than were participants in the no secondary confession control group. Contrary to expectations, the percentage of guilty verdicts did not vary with incentive, testimony history, or expert testimony. Explanations for these results are discussed, as are the practical challenges of using testimony from cooperating witnesses.

Keywords

Jailhouse informants Accomplice witness Expert testimony Confessions 

Copyright information

© Springer Science + Business Media, LLC 2012

Authors and Affiliations

  • Jeffrey S. Neuschatz
    • 1
  • Miranda L. Wilkinson
    • 1
  • Charles A. Goodsell
    • 2
  • Stacy A. Wetmore
    • 3
  • Deah S. Quinlivan
    • 4
  • Nicholaos J. Jones
    • 5
  1. 1.Department of PsychologyThe University of Alabama in HuntsvilleHuntsvilleUSA
  2. 2.Department of PsychologyCanisius CollegeBuffaloUSA
  3. 3.Department of PsychologyUniversity of OklahomaNormanUSA
  4. 4.Department of PsychologyFlorida Southern CollegeLakelandUSA
  5. 5.Department of PhilosophyThe University of Alabama in HuntsvilleHuntsvilleUSA

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