Trespass and the police
<p>Can a US cop ask a land owner if a person is trespassing if no complaint has been made? i.e. can they ask a shop owner if a person is trespassing in their car park or outside the shop?</p>

<p>Yes, of course. <em>Anyone</em> can walk up to a shop owner and ask them pretty much whatever questions they want; police have just as much of a right to do that as anyone else. The shop owner doesn't have to answer, but police are free to ask.</p>

trespass