.
Wis. cop charged after gun goes off at mall
http://www.policeone.com/Officer-Saf...s-off-at-mall/
It was a 40cal S&W with "no safety" apparently - I'm guessing it was an M&P?
I'm convinced though that a holster of somekind is an absolute necesity - even pocket carry - they have pocket holsters, but I think a holster of somekind is necesary.