| Genre: | Police procedural Crime drama Action |
| Creator: | Jonathan Chik |
| Screenplay: | Chow Yuk-ming Tai Tak-kwong Ku Yee-lai Fong Sai-keung Tsang Po-wah Cheung Siu-fong |
| Director: | Jonathan Chik Mak Koon-chi Joe Chan Tong Fung-chun Cheng Kei-sing Chung Kwok-keung |
| Starring: | Felix Wong Gallen Lo Sunny Chan |
| Opentheme: | "真相" (lit. Truth) performed by Jacky Cheung |
| Endtheme: | "怎麼說" (lit. How to Say It) performed by Bondy Chiu |
| Theme Music Composer: | Lee Shih Shiong |
| Country: | Hong Kong |
| Language: | Cantonese |
| Num Episodes: | 30 |
| Producer: | Jonathan Chik |
| Location: | Hong Kong |
| Camera: | Multi camera |
| Runtime: | 42 minutes (each) |
| Company: | TVB |
| Network: | TVB Jade |
| Related: | The Criminal Investigator |
The Criminal Investigator II (Traditional Chinese: O記實錄II; lit. The O Files II) is a 1996 Hong Kong police procedural television drama. Produced by Jonathan Chik with a screenplay edited by Chow Yuk-ming and Chiu Ching-yung, the drama is a TVB production and the direct sequel to 1995's The Criminal Investigator. 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 | Charles Leung Ka-wai (梁家偉) | Gallen Lo |
| 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 | Yeung Yat-san (楊日辰) | Dai Yiu-ming |
| District Attorney of Department of Justice | Rita Yu Ching-wan (余靖允) | Yvonne Lam |
| Rank | Role | Cast |
|---|---|---|
| Superintendent | Jeff Chan Kwai (陳桂) | Choi Kwok-kuen |
| Police Constable | Ng Lap-kwong (伍立光) | Willie Wai |
| Police Constable | Toby Fong Siu-man (方小敏) | Josie Ho |
| Police Constable | Ah Chi (阿志) | Sammy Lau |