Common knowledge drugs like methamphetamine are sold in and out of clubs. Obviously this club and others with late night club revelers are going to attract elements of the population who are into all of that. Police around the world raid clubs based on intell (and corrupt for bribes).
I don't like drug dealers as they ruin lives and make tons of money off greed.
Users - they know the risk of being caught. They run the gauntlet. If they are busted bad luck, they know it's llillegal.
I am sure some forum readers here probably endorse amphetamines as they are users themselves. Up to you if you are a junkie or casual user, but no sympathy if caught. The big downside is amphetamines can cause psychosis and serious violent crimes, which puts others at risk (like recent massacre possibly as a result of prolonged use).
Another problem here is the very bad reputation of the BIB, the widespread serious corruption, the fear of being arrested for some fictitious offence and being extorted for money. Fleeing a raid therefore is potentially dual reasoned.