The LawBod's legal history collection policy is concentrated on works on the Anglo-American or common law legal tradition. However we are not without some works which might support your interest. SOLO searches will reveal if other parts of the Bodleian such as the Chinese Studies Library can further assist.
In the Bodleian Law Library, books with a shelf mark starting China can be found on Level 1, one floor beneath the entrance level. There are seats for readers on that floor too.
Heaven Has Eyes: Law and Justice in Chinese History by 
Legal Traditions of the World by 
The spirit of traditional Chinese law by 
Origins of Chinese law : penal and administrative law in its early development by 
The T'ang code by 
Legal Lessons : popularizing laws in the People's Republic of China, 1949-1989 by Searches in SOLO may reveal useful titles in other Bodleian libraries. Please check their webpages for opening hourse, location etc
