[soulofmischief]

If your PC is connected to a power strip, it's my understanding that law enforcement can attach a live male-to-male power cable to the power strip and then remove the power strip from the wall while still powering the computer. That, and yeah freezing ram.

[ghostpepper]

So technically that's removing power, not "powering it down". I guess you'd then warm-boot with your own kernel and hope that the contents of RAM are mostly untouched?