Now the justices have made partial amends for that mistake by ruling that law-enforcement officers may not detain a motorist for the sole purpose of bringing a drug dog to the scene of a traffic stop. Once the officer has finished dealing with the matter that caused the stop (say, running a red light), then the stop is supposed to conclude and the motorist should be allowed to go on his or her way.
Once upon a time, conservatives would have decried such a ruling as an affront to law, order and perhaps even civilization itself. But the increasing militarization of law enforcement, along with several recent high-profile deaths at the hands of police officers, is leading many to reconsider their views. And why not? If you believe in limited government, and recognize that the police are a part of the government, then it stands to reason they should operate within limits, too.