Citizen! You don't need a tinfoil hat! If you've got nothing to hide, you have no need to worry.
Move along now, nothing to see here!
I don't know. I suspect though that a good chunk of science fiction just came in from the cold.
Officer (detective, inspector, whatever)! Since "If you've got nothing to hide, you have no need to worry," do you mind if I scan you first?
(I'm sure that'll go over big.)