> Imagine your government made it mandatory to leave keys in a certain place so police could enter a property in a hurry.

I'm sure this actually happened somewhere in the US... it might just have been proposed but I distinctly remember reading about mailbox-like containers at the bottom of drives locked with a master key. Does anyone else?

Edit: More than once apparently, "lockbox" was the term I was missing when googling earlier: http://wcfcourier.com/news/local/update-cedar-falls-city-cou... http://archive.northjersey.com/community-news/2.4225/rescuer...