Inspector Choi

A colleague of Leung and Fatso at the Mong Kok Police Station.
He was trained by Lau Ming Wa, a "Hong Kongist" and respected him, but was shocked when Lau Ming Wa died in a scandalous assassination attempt on the head of the Red Flower Society.
He had been skeptical of Leung's suspicions until that incident, but gradually came to listen to Leung's words and contributed to the investigation of Chu Yuk-Gong.