Booger Hook off the Bang Switch

Someone not being careful?

• Chicago police said no one was injured when an officer's gun unintentionally went off in a police station in the Near West Side Tuesday morning.

  CPD said that at about 11:40 a.m., an on-duty officer was handling a firearm at the 12th District station in the 1400 block of South Blue Island Avenue when the gun went off.

  The officer did not mean to fire his gun. No one was struck and no injuries were reported, CPD said.

Locker Room? 

Hallway by the gun lockers outside of lock-up? (does 012 even have a lock-up?)

Clothing snag? 

And how is Channel 2 getting this info?