Sifu Vincent Lyn, heir of the style Ling Gar, explains the Chin Na system of personal defense, intensely bound to his family style.  The Chin Na, art of - grab and control, includes an arsenal of techniques which can be incorporated to different styles of the Chinese Martial Arts.  This allow us to control and immobilize the articulations, muscles and the opponent's tendons, until the point of neutralizing his fight capacity is to cause him loss of consciousness, and even death.