Season 4
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 series, with new cast. The series focuses on the lives of two detectives, Tsui Fei (Louis Koo) and Kong Chi Shan (Sunny Chan), and the murder cases they deal with.
50 Episodes
Episodes
Episode 1
March 29, 1999
Episode 2
March 30, 1999
Episode 3
March 31, 1999
Episode 4
April 1, 1999
Episode 5
April 2, 1999
Episode 6
April 5, 1999
Episode 7
April 6, 1999
Episode 8
April 7, 1999
Episode 9
April 8, 1999
Episode 10
April 9, 1999
Episode 11
April 12, 1999
Episode 12
April 13, 1999
Episode 13
April 14, 1999
Episode 14
April 15, 1999
Episode 15
April 16, 1999
Episode 16
April 19, 1999
Episode 17
April 20, 1999
Episode 18
April 21, 1999
Episode 19
April 22, 1999
Episode 20
April 23, 1999
Episode 21
April 26, 1999
Episode 22
April 27, 1999
Episode 23
April 28, 1999
Episode 24
April 29, 1999
Episode 25
April 30, 1999
Episode 26
May 3, 1999
Episode 27
May 4, 1999
Episode 28
May 5, 1999
Episode 29
May 6, 1999
Episode 30
May 7, 1999
Episode 31
May 10, 1999
Episode 32
May 11, 1999
Episode 33
May 12, 1999
Episode 34
May 13, 1999
Episode 35
May 14, 1999
Episode 36
May 17, 1999
Episode 37
May 18, 1999
Episode 38
May 19, 1999
Episode 39
May 20, 1999
Episode 40
May 21, 1999
Episode 41
May 24, 1999
Episode 42
May 25, 1999
Episode 43
May 26, 1999
Episode 44
May 27, 1999
Episode 45
May 28, 1999
Episode 46
May 31, 1999
Episode 47
June 1, 1999
Episode 48
June 2, 1999
Episode 49
June 3, 1999
Episode 50
June 4, 1999
