Fair Profiling

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Date

2005

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Abstract

There are several strategies available to police “stopping” suspects. Most efficient is to stop only members of the group with the highest a priori probability of guilt; least efficient is indiscriminate stopping. An efficient option that satisfies one criterion for fairness is a strategy that matches stop probability to risk probability. But a strategy that chooses stop probabilities so that the absolute number of innocents stopped is equal for all groups is close to maximally efficient and seems fair by almost any criterion.

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