Re: Smart crims?
"This is why you are advised never to keep any identifying documents in your vehicle. You have seven days in which to produce them at any police station, not just one belonging to the constabulary who stopped you."
Depends on where you are. Most places you're expected to have them at hand or the police can give you immediate trouble (and not just registration; also proof of insurance and proof of current inspection). At best, they give you a ticket for not having the documents at hand (the "at hand" specifically required under most traffic codes); at worst they may think the car is stolen (that's Grand Theft Auto—a felony—meaning having to deal with jail in the process).