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Weighing Poison Fruit, Yale Kamisar

Articles

In the simplest cases involving the exclusion of illegally obtained evidence, the items the defense is trying to suppress, such as drugs found during the search of a suspect's pocket, are direct, or primary, in their relationship to the police action. Thus, if the police have acted unlawfully, the evidence must be excluded from trial.

Many times, however, evidence is derivative, or secondary, in character. For example, an illegal search may turn up a key to an airport locker where the proceeds of a bank robbery are being kept. Or a coerced confession may reveal the place where a suspect …