The Criminal Investigator II (Traditional Chinese: Oè¨Â實éÂÂII; 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.