Dislcosure - I was a bartender for almost a decade and was a part-owner of a very busy bar.
My observations based on that experience ......... This kind of business is a magnet for difficulty. Bars are where people drink alcohol. Even one alcoholic drink changes your impulse control and perception. I think it's safe to say that at night at least half a bar's customers are there to get at least a little bit drunk. Drunks do strange things. The later at night the drunker they get. The drunker they get the less well they function --- and they become great targets for muggings, get into boat and traffic accidents, and/or tend to get into "miunderstandings" that can turn violent.
My guess is that there are not so many stalkings, muggings or stabbings outside AA meetings, church services or afternoon picnics. Even if you are stone-cold sober you are still at risk late at night around a bar.
Owners of bars are making a profit on selling something that tends to make people behave abnormally. IMHO bar-owners should do their part to protect neighbors, customers, themselves and the community in general from the enevitable side-effects of their profit-making enterprise. This includes having a security guard, good lighting, minimun cash on site, and a policy of not serving people to the point of falling down. I can think of more than one death on this island that would not have happened if these simple practices had been observed.
This is another kind of crime-prevention - and one desperately needed on this island where heavy drinking sometimes looks like a team sport.