In the movie made by Lin Zhengying, he was a traffic policeman

"Exorcist Police" is the debut film directed by martial arts director Dong Wei. It is a Hong Kong ghost story film directed and released by Lin Zhengying in 1990. In this film, Lin Zhengying plays three roles. He is a director, producer and starring actor, and is a leader in the Hong Kong entertainment industry. In addition, this film once won the Hong Kong Best Film of the Year Award. Combining the most popular spiritual and exorcist film of the late 1980s with Hong Kong film industry's best police action film, Taoist star Lam Ching-ying has succeeded again. In the film, Lin Junxian and Miu Qiaowei play police officers. During the drug investigation, the two accidentally killed a mysterious woman, who was later found to have been dead for a long time. Superintendent Wu Ma of the Crime Unit realized that the situation was serious and asked Lin Zhengying, who was proficient in magic, to join the investigation. It was discovered that the leader of the group who used dead people to transport drugs was Michiko Nisigyo, the leader of a Japanese cult. The two sides started a fierce battle.

The police of the Crime Unit encountered a strange incident while tracking a drug trafficking case. The woman transporting drugs had a dull expression and extraordinary strength. Seven or eight police officers could not stop her progress. In the end, an out-of-control truck drove her away. The woman was knocked down. After investigation, the police found that the woman was the daughter of the third wife of Dongpingzhou, and therefore asked the third wife to come and record a statement. In order to take care of the elderly body of the third wife, Uncle Feng (played by Lin Zhengying), a policeman in Dongpingzhou, came to cooperate with the police investigation. Uncle Feng is a policeman with strong magic skills. After looking at the corpse, he found something strange in it and suspected that someone was using the walking dead to transport poison. Uncle Feng's old partner (played by Wu Ma) knew that the case was serious, so he asked Uncle Feng to investigate. Working with Uncle Feng are two little unknown policemen (played by Lin Junxian and Miao Qiaowei). They like Uncle Feng's niece (played by Wang Meihua), so they make a lot of jokes with the old-fashioned Uncle Feng. As the investigation deepens, the cult drug trafficking organization hidden behind the scenes gradually emerges.