As a vet myself, who served in HK, I worked at night doing anti-vice work in Kowloon, for 6 months. My job was to check on the girls working in the brothels, which were run by the Triads. My partner and I NEVER had a problem during that time. If Douglas was a Provost Sgt, his duties would have confined him to Barracks and not on the streets of HK or Kowloon.