Based on the anime and live-action series and movies: Sukeban Deka: Kōdo Nēmu = Asamiya Saki
(Sukeban Deka is translated to: "Delinquent Girl Detective")
The series in English is also called Yo-Yo Girl Cop and the third movie in English goes by that title.
薬師丸ひろ子主演「セーラー服と機関銃」。☆A Kadokawa Film "Sērā Fuku tó Kikanjyū" (English title: 'Sailor Suit and Machine Gun') starring Hiroko Yakushimaru, 1981. ＊Sailor Suit or the middy uniform was a standard for Japanese junior & high schools for decades, still popular as of today among varieties of new designs.