with 20 episodes premiered on March 13, 1995

Cheung Dai Yong, a brilliant and astute police officer, has a track record of solving crucial cases. His trusted colleague, Lee Chung Yee, stands by his side, and together they tackle challenging and… see more

with 40 episodes premiered on December 11, 1995

Detectives Cheung Tai Yung and Lee Chung Yee are back! This time, they are faced with even tougher cases: “Fatal Attraction”, “Destroying the Corpse”, “Death Warning, “ and “The Son’s Cross”. Meanwh… see more

with 40 episodes premiered on September 1, 1997

An even more thrilling succession to the second series, the "Detective Investigation Files III" continues to depict mysterious murder cases solved by Yung (Dai Tai Yu) and Yi (Leung Wing Chung), whil… see more

with 50 episodes premiered on March 29, 1999

Detective Investigation Files IV (Chinese: 刑事偵緝檔案IV) is the 4th and final installment of the Detective Investigation Files TV franchised by TVB in Hong Kong. It is a complete reboot of the ser… see more