Shugo (provincial constable) in ryoseikoku (province) was granted authority necessary to cause Gokenin in the province to engage in Obanyaku ('Oban-saisoku (Shugo's authority to command Gokenin, lower ranked vassals to guard Kyoto), and such authority was regarded as one of Taibon Sankajo (three major tasks of peacekeeping).
令制国の守護は国内の御家人を大番役に従事させるために必要な権限が与えられており（「大番催促」）、大犯三箇条のうちの1つに数えられている。