First published in 1936, this work represents primary source material of ancient combat techniques designed in a time of occupation and war, when the threat of lethal hand-to-hand combat was an ever-present reality for soldiers, those involved in law enforcement, and very often for the ordinary citizen. This is the seminal work in the field, written by the formís founders, Liu Jinsheng and Zhao Jiang, as a training manual for the Police Academy of Zheijiang province. The intent of this translation is to provide authentic historical documentation for martial arts techniques that have been modified for use today in both competition and self-defense. Submission grappling is a technique in which fighters use locks, chokes, and breaking techniques to defeat their challengers in no-holds-barred matches. Chi Na Fa remains the most comprehensive explanation available of these Chinese grappling techniques, from which derive many current techniques. Renowned author and Brazillian jiu jitsu champion Tim Cartmell presents the book in a clear, compelling new translation.