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by slapresta 3969 days ago
Sure, because a coin is evaluated on its capacity to map to an even distribution of outcomes. Drug possessions, however, are almost surely not an even distribution. If, say, 95% of the people that the dog evaluates have drugs, then raising an alarm 93% of the time is probably pretty good.

In other words: If we wanted a drug dog to be as close as possible to a coin flip, we'd just flip a coin instead.