Carry a "burner" phone and give that to the criminal. Ideally just carry it, or at least keep the real one somewhere more secure and less obvious and produce th

Carry a "burner" phone and give that to the criminal. Ideally just carry it, or at least keep the real one somewhere more secure and less obvious and produce the burner. Requires the discipline of using the real one when you're out because someone could see you have it.