Wong Ga Si Je IV: Jik Gik Jing Yan (1989)
Huang Jia Shi Jie Zhi IV: Zhi Ji Zheng Ren / In the Line of Duty 4 / Witness / In the Line of Duty IV / In the Line of Duty / 皇家師姐Ⅳ 直擊證人
Raiting: 
7,1 /10
Genre: Action
Director: Woo-Ping Yuen
Stars: Cynthia Khan, Donnie Yen and Michael Wong
Country: Hong-Kong
Release date: 21 July 1989
Length: 90 minutes
