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False Accuracy In Criminal Trials: The Limits And Costs Of Cross Examination, Lisa Kern Griffin
False Accuracy In Criminal Trials: The Limits And Costs Of Cross Examination, Lisa Kern Griffin
Faculty Scholarship
According to the popular culture of criminal trials, skillful cross-examination can reveal the whole “truth” of what happened. In a climactic scene, defense counsel will expose a lying accuser, clear up the statements of a confused eyewitness, or surface the incentives and biases in testimony. Constitutional precedents, evidence theory, and trial procedures all reflect a similar aspiration—that cross-examination performs lie detection and thereby helps to produce accurate outcomes. Although conceptualized as a protection for defendants, cross-examination imposes some unexplored costs on them. Because it focuses on the physical presence of a witness, the current law of confrontation suggests that an …
Honesty Without Truth: Lies, Accuracy, And The Criminal Justice Process, Lisa Kern Griffin
Honesty Without Truth: Lies, Accuracy, And The Criminal Justice Process, Lisa Kern Griffin
Faculty Scholarship
Focusing on “lying” is a natural response to uncertainty but too narrow of a concern. Honesty and truth are not the same thing and conflating them can actually inhibit accuracy. In several settings across investigations and trials, the criminal justice system elevates compliant statements, misguided beliefs, and confident opinions while excluding more complex evidence. Error often results. Some interrogation techniques, for example, privilege cooperation over information. Those interactions can yield incomplete or false statements, confessions, and even guilty pleas. Because of the impeachment rules that purportedly prevent perjury, the most knowledgeable witnesses may be precluded from taking the stand. The …