| Genre: | Police procedural Crime drama Action |
| Creator: | Jonathan Chik |
| Screenplay: | Chow Yuk-ming Tang Cho-san Mang Wai-cheung Wong Kin Tsang Po-wah Szeto Wai-cheuk |
| Director: | Law Tak-ming Chu Yik-lung Wong Chun-man Mak Koon-chi Chung Kwok-keung Marco Law |
| Starring: | Felix Wong Sunny Chan |
| Opentheme: | "烈火狂奔" (lit. Prancing in the Fires) performed by Jacky Cheung |
| Theme Music Composer: | John Laudon |
| Country: | Hong Kong |
| Language: | Cantonese |
| Num Episodes: | 21 |
| Producer: | Jonathan Chik |
| Location: | Hong Kong |
| Camera: | Multi camera |
| Runtime: | 42 minutes (each) |
| Company: | TVB |
| Network: | TVB Jade |
| Related: | The Criminal Investigator II |
The Criminal Investigator (Traditional Chinese: O記實錄;) is a 1995 Hong Kong police procedural television drama. Produced by Jonathan Chik with a screenplay co-written and edited by Chow Yuk-ming, the drama is a TVB production. The story follows a team of investigators from the Organized Crime and Triad Bureau (OCTB) unit of the Royal Hong Kong Police Force.
| Rank | Role | Cast |
|---|---|---|
| Ho Tsan-yeung (何鎮洋) | Wong Wai | |
| Superintendent | Jeff Chan Kwai (陳桂) | Choi Kwok-kuen |
| Teddy Ng Kwok-siu (吳國兆) | Chan Wing-tsun | |
| Wong Chi-chung (王志淙) | Felix Wong | |
| Sergeant | Lam Wing-tai (林永泰) | Sunny Chan |
| Senior Police Constable | Chu Yat-lung (朱日隆) | Yu Tin-wai |
| Senior Police Constable | Szeto Man-on (司徒文安) | Joe Ma |
| Police Constable | Wu Sau-fat (胡守法) | Shum Po-sze |
| Police Constable | Tsui Pui-lam (徐沛霖) | Ng man-wai |
| Police Constable | Yip Fai (葉輝) | |
| Criminal Attorney | Rita Yu Ching-wan (余靖允) | Yvonne Lam |