Keishicho Keizoku Sosahan
Keishicho Keizoku Sosahan (警視庁継続捜査班) is a Japanese police procedural television drama that aired on TV Asahi in 2010. The series consists of eight episodes broadcast between July 22 and September 9, 2010, in the Thursday 21:00 time slot. It achieved an average viewership rating of 12.6% in the Kanto region.

Plot
The narrative centers on Manami Kishi, portrayed by Yoshino Kimura, a police academy instructor recognized for her expertise in criminal profiling. Following the legislative changes regarding the statute of limitations for murder cases, the Tokyo Metropolitan Police Department establishes a specialized unit to revisit and investigate previously unsolved cold cases. Kishi is recruited to assist this team, utilizing modern scientific investigative techniques to identify perpetrators of long-standing crimes.
Cast
The series features an ensemble cast led by Yoshino Kimura. Key cast members include:












- Yoshino Kimura as Manami Kishi
- Michitaka Tsutsui as Shinichi Yabuki
- Noboru Takachi as Satoru Miyagawa
- Yuko Fueki as Hitomi Yoshizaki
- Yusei Tajima as Makoto Takagi
- Daikichi Sugawara as Toru Yamagishi
- Rikiya as Shuhei Nakata
- Keisuke Minami as Tatsuya Tomoe
- Kimiko Yo as Noriko Mizuki
- Sei Hiraizumi as Koichiro Iwase
- Tsuyoshi Ihara as Akihiko Nitta
- Kozue Koyanagi as Yoshiko Akimoto
Production
The series was directed by Tatsuzo Inohara, Jota Tsunehiro, and Nobuyuki Takahashi. The screenplay was written by Masahiro Yoshimoto, Shukei Nagasaka, Naoya Takayama, and Yoshinobu Kamo.
Broadcast Ratings
The series maintained consistent viewership throughout its eight-episode run, with ratings peaking at 13.2% for the seventh episode.
| Episode | Date | Ratings (Kanto Region) |
|---|---|---|
| 01 | 07/22/2010 | 12.7% |
| 02 | 07/29/2010 | 12.7% |
| 03 | 08/05/2010 | 12.5% |
| 04 | 08/12/2010 | 12.9% |
| 05 | 08/19/2010 | 12.6% |
| 06 | 08/26/2010 | 11.1% |
| 07 | 09/02/2010 | 13.2% |
| 08 | 09/09/2010 | 12.7% |