This agreement was further clarified by the Goseibai-shikimoku (code of conduct for samurai), and then a principle was established that even when a criminal and others ran into such funyuchi (special areas for excluding shugo), the criminal should be searched by kokushi or ryoke, and handed over to the shugo side on a border line of the funyuchi.
これは御成敗式目によって一層明確化され、不入地に犯罪者などが逃げ込んだ場合でもその追捕は国司・領家によって行われ、不入地の境界線で守護側に引き渡すと言う原則が成立した。