Consequently, in the time of the regent Yasutoki HOJO, the litigation system was implemented and "Goseibai-shikimoku" (code of conduct for samurai) was promulgated with some elements taken from the court noble law.
そこで執権北条泰時の時代に訴訟制度が整備され、公家法の要素を一部取り込みながら『御成敗式目』を制定した。