One evening a few years ago, Troy Lewis had just parked his car when a D.C. police officer noticed that the car lacked a front tag. The officer asked Lewis whether he had a driver’s license. Lewis answered no, and then fled. The cop caught him, and, before his backup arrived, no fewer than 10 local junkies came up and asked for Lewis’ car keys. Needless to say, this piqued the officer’s curiosity; in the car’s locked glove compartment, he found 100 bags of heroin, which formed the basis for Lewis’ drug conviction. Last month, however, the D.C. Court of Appeals threw out Lewis’ conviction because he was not physically in the car when the policeman intercepted him.