RESTRAINING THE SAFE WAY TMZ.com
Rener Gracie -- whose family is credited with creating Brazilian jiu-jitsu -- is teaching cops a new restraint that he says is safer than a chokehold, and he demonstrated on one of our own to hit the point home.
The MMA legend joined us on "TMZ Live" Tuesday and broke down the move, which he calls the "SafeWrap" ... trotting out an exhibition of sorts by deploying it on a TMZ staffer who played guinea pig for the demo.
Rener is now teaching his move to the NYPD .