So I have full custody of my daughter and my ex-wife has her and also has a warrant for her arrest. I got a real nasty prank call from a number that I seem to have been able to trace back to a specific address. The prank call feels exactly like the kind of childish thing my ex would do so I think its a high likelihood she is living at this address currently. How could I go about confirming if she was there without having the cops just showing up there. I don't want to waste their time or harass the people living there is my ex isn't actually there.