[Michael Barnes]

By default, you should have your phone on auto-lock (after set amount of time). Those "smart phones" carry a LOT of information about you.

Sir, would you please enter your un-lock code?
Sorry officer, I can't remember the code.

[ConservativeWarrior]

You can also backup your phone periodically, and become familiar with its data-wipe procedures.

I wonder if this creates a market for phones with an instant-memory-and-call/text-log wipe button.