Doors with keypads

[atomic1fire]

Rather than the standard hack wires/depower everything or just grab the RCD, what if you could brute force certain doors by just using the same brute force methods that safes use. Rather then an ID lock, certain standard doors would just use a keypad only set by the person who first locks the door.

Addendum: Detective can use his crime scene scanner to see which keypad buttons have fingerprints on them.