Anything by Prof. Leo is well worth the read.
Leo on Interrogation Contamination
Richard A. Leo (University of San Francisco – School of Law) has posted Why Interrogation Contamination Occurs (Ohio State Journal of Criminal Law, Forthcoming) on SSRN. Here is the abstract:
The problem of police interrogation contamination (disclosing or leaking of non-public facts) is pervasive in documented false confessions leading to wrongful conviction. The presence of unique and detailed crime facts in a false confession creates the illusion that the defendant volunteered inside information about the crime that “only the true perpetrator could have known,” thus seemingly corroborating a false confession as verifiably true. This article argues that confession contamination occurs because (1) the guilt-presumptive psychology of American police interrogation is designed to trigger and perpetuate confirmation biases that (2) lead investigators – seemingly inadvertently – to provide detailed case information to suspects as part of their pre- and post-admission accusatory interrogation strategies, but (3) has no internal corrective mechanism to catch or reverse investigators’ misclassification errors or their confirmatory interrogation techniques.
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