How to solve a murder: a detective's dilemma

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Every detail counts: how detectives work with circumstantial evidence

Circumstantial evidence gets a bum rap, but in the hands of savvy detectives it’s what cracks most cases. This is how they use it to piece together a narrative for a crime

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Leaving an invisible trail: how killers cover up their crimes

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The search for truth: what happens when lie detectors lie

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