Tai Chi as a combat art pt 2

[Xue Sheng]

OH my goodness. I nearly forgot the most important question to ask. Does Tai chi have a Chin na(pressure point) system intergrated into the style?

Thanks I almost forgot to ask.

Chin na (Qinna) is joint locking and muscle and tendon tearing and yes Tai Chi has Qinna

EDIT: Chin na (Qinna) - http://www.answers.com/topic/chin-na