This was because the Kamakura bakufu established the Rokuhara Tandai (an administrative and judicial agency) in Rokuhara and because the Kyoto residence of the Hojo clan was established after the defeat of the Taira clan, but the avoidance of direct conflict with kebiishi over the right to judge criminal cases is also given as a reason.
鎌倉幕府が六波羅に六波羅探題を設置したのも、平家滅亡後に、京都における北条氏の邸宅が置かれていたこともあるが、検断権を巡る検非違使との直接的な衝突を避けたことも理由に挙げられる。