Many a times police/security officers do get grabbed behind the collar area of their Tac Vest from behind. When this happens it does come as a shock to the officer who many a times does not know what to do or how to react to the situation with the officer ending up in the mercy of his/her assailant. In this video Grandmaster Javed Khan, founder and creator of Khan Do Kwan Police Control Tactics instructs officers how to control the situation and defeat the criminal who grabs the officer's vest from behind.