Theshow50h, summed it up nicely. If you have nothing to hide just show your I.D. and you can be on your way. If you don't have I.D. give the officer your name and date of birth and again you will probabaly be on your way, that is unless you have commited a crime or have a warrant. Most officers get very suspicious of people who don't show I.D. because they think that the person is trying to hide their identity.

And Tampamax, I agree with you, tell a cop they can only check your car for their protection and good luck not getting charged with something if they find crack, pot, or whatever other crap people leave in their car