Here is some info on the individual films:
Sexy S.W.A.T. Team aka Onna chikan sôsakan: Oshiri de shôbu! aka Female Detective Molester Buster: My Ass Wins.
1998 IMDB link
cast: Masayuki Akuta, Yumika Hayashi, Yukijirô Hotaru, Shôko Kudô, Nao Saitô, Satomi Shinozaki
The “Sexy S.W.A.T. team” is an elite unit of four beautiful women, fighting Tokyo’s sex crimes. When inspectors, Michelle and Heather, discover a laser is erotically affecting peoples’ minds, they link the incidents to a nearby Brainwave Institute. The struggle begins as they attempt to uncover the mystery, and bring down the mastermind behind it all.
Trailer link on NSFW Pink Eiga site
Sexy S.W.A.T. Team 2 aka Onna chikan sôsakan 2: basuto de goyô! aka Female Detective Molester Buster 2: Catch You with My Breasts aka Chikan fairu: sennyû onna sôsakan 2.
1999 IMDB link
cast: Shôko Kudô, Tomohiro Okada, Nao Saitô, Keiko Seto, Hitomi Yamazaki, Makoto Yamazaki
Sexy S.W.A.T. Team 3 aka Onna chikan sôsakan 3: chijô no tekunikku aka Female Detective Molester Buster 3: Indecent Technique aka Chikan otori sôsakan: inshû no yubisaki aka The Molestation Investigator Decoy
2000 IMDB link
cast: Yukari Aoki, Ichirô Nakade, Makoto Sasaki, Mayuko Sasaki, Shûetsu Tôkaichi, Makoto Yamazaki
Sexy S.W.A.T. Team 4 aka Onna chikan sôsakan 4: torokeru kahanshin aka Female Detective Molester Buster 4: Melting Body aka Chikan otori sôsakan 2: geki nure inran shiri aka The Molestation Investigator Decoy 2.
2001 IMDB link
cast: Yumika Hayashi, Yukijirô Hotaru, Motoshi Imano, Kyôko Kazama, Terumi Minami, Ken’ichi Tajima, Shûetsu Tôkaichi
The elite sexual crime investigator, Claire, tries to arrest a sexual offender on a train. However, he puts a strange machine on her vagina and she becomes momentarily paralyzed. One day, she is ordered to investigate a stalker’s incident. She discovers the crime is related to the groper and his strange machine. Claire asks the help of super genius scientist and criminal, Dr. Honeybar Nectar, and tries to solves the crime