How to unlock an iPhone 5C?
Though this is in effect a duplicate of How can I bypass Activation Lock? as it's a nice clean question, looking for a legitimate solution - to which only the police or perhaps network provider might be able to assist.

It does, however give an opportunity for a lesson in "be prepared".

In this circumstance, or indeed if you were in an accident - if the authorities can't get in your phone they may not even know who you are..

Solution - 5 minutes in Photoshop or Gimp…   

Put your ICE on your lock screen.



The picture needs to be 200px larger than your screen resolution in both directions, because of the parallax/motion effect, &amp; it might need a couple of attempts to get the text out of the way of the Slide to Unlock, but it's well worth it for peace of mind.