They deployed a Sokan (a military authority) in Kyoto and Kinai region (provinces surrounding Kyoto and Nara), a Chinbushi (a temporary government post), later a Setsudoshi (a military governor), in every route in areas west of Heijo-kyo (the ancient capital of Japan in current Nara) to improve the maintenance of security.
また、京や畿内に惣管・平城京以西の道ごとには鎮撫使、のちに節度使を設置し治安維持を強化した。