It was appropriate for his character - one that puts duty above all else - to arrest the conniving officers who arranged Tagomi's murder and tell the Crown Princess that it was time for Japan to give up the West Coast territory.
Kido was one of my favorite characters in the show (I loved his cold demeanour and always-immaculate workwear) and Tagomi's early departure meant that he was always at the heart of the events in San Francisco during season four. The liberation was a reflection, though, of Japan's waning military power. They did more in a single season than Frank and the resistance managed in the last three combined! I didn't have a strong attachment to the group's members, though, and felt that their victory over the Japanese empire was a little too easy. The BCR were an intriguing parallel to the Black Power movement that emerged in our world during the late 1960s and 70s.
