I'd be inclined to agree, if and only if "going too far" comes with its own (judicial, not administrative) punishments, not just letting the suspect go free. Ot

I'd be inclined to agree, if and only if "going too far" comes with its own (judicial, not administrative) punishments, not just letting the suspect go free. Otherwise the incentive structure is screwed up, since the police suffer personal consequences when they don't go far enough but do not when they go too far.