Running late on her first day as a patrol woman for the Bokuto Police Department, spunky moped rider Natsumi Tsujimoto decides to take several shortcuts, only to be chased down and cited by mechanical genius and expert police driver Miyuki Kobayakawa. Upon arrival at the precinct, Natsumi finds out that her new partner is the same woman who ticketed her earlier. At first, she doesn't trust Miyuki, but in a short period of time, they develop an unbreakable friendship that overcomes traffic accidents, reckless drivers and even the strongest typhoons to hit Tokyo.
Taiho Shichau zo had two volumes published in English as You're Under Arrest! by Dark Horse, from October 15, 1997 to December 1, 1999. These volumes were not numbered, but subtitled The Wild Ones and Lights and Siren, respectively. Previous to that, it had run as a Dark Horse Comic for eight issues, from December 1, 1995 to July 1, 1996.