Getting someone to confess to a crime is not a simple task, and the fact that detectives sometimes end up with confessions from the innocent testifies to their expertise in psychological manipulation. No two interrogations are alike, but most exploit certain weaknesses in human nature.

The real question is probably a much larger one: Can police interrogation ever be a fair process? How can a system designed to manipulate a suspect into confessing be non-coercive? The debate about the fairness and morality of police interrogation techniques is an ongoing one, with several issues at the forefront.

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