Digests of law collected from all the races of the Malay archipelago fill many printed volumes. In the Malay peninsula they are of three main types. There are digests and tribal sayings that embody the mild indigenous matriarchal law of agricultural clans, the 'adat perpateh or Law of Prime Ministers, found among the Minangkabaus of Sumatra and their colonists in Negri Sembilan. There are digests of patriarchal law deterrent to criminals, the 'adat Temenggong or Law of the Minister for War and Police, evolved for the mixed population of ports, law introduced largely from India along with commerce by traders and adventurers, at first Hindu and later Muslim. (This second type of law may be further divided into general digests of constitutional criminal and civil; law, full of relics of indigenous custom and borrowings from the period of Hindu influence but modelled on text-books of Muslim canon law and containing many of its provisions; secondly, digests of port rules adopted by countries like Acheh and Kedah from regulations of the kind India knew from the days of Chandra Gupta to the time of the Great Moguls; and, thirdly, digests of maritime law compiled, it is said, for Bugis trading vessels.) The last of the main types requires no comment, being Malay translations of orthodox Muslim works of the school of Shafi'i, especially treatises on the law of marriage, divorce, and the legitimacy of children, the only branch of Muslim canon law that Malays have adopted practically unchanged.