On the surface, it may seem that the law worked. The stores just changed their business style to avoid the police. For example, some stores just sell the goods in the stock room, or have the customers place an order and deliver the goods the next day. The gambling industry is controlled by STDM, its monopoly contract ends in 2001. A little on the casino, the dealers at the casinos have a habit of helping themselves to a percentage of the winnings for tips.
Security is tight at the Casino, no weapons, no pocketknives, and no cameras.
You'll be asked to remove them before entering. Just walk away if you don't want to be bothered. They will follow you for a long while if you get just a bit friendly. While we are on the topic, maybe a little on prostitution. The Triad would get them a temporary visa to enter Macao.