As far as "reports of crime", I am not aware that crime is really much higher than it ever has been, considering the whole island. There are certain places that I don't go after night, that we used to go to, years ago, like Marigot or Sandy Ground, but those are both situations that have been going on for some time, pre Irma. As far as Happy Bay in particular, hopefully someone who has been there recently will chime in. But standard precautions should be not to take any valuables, specifically including a phone, unless you don't plan on going in the water at the same time. No purses hanging over your shoulder, that someone could grab and run with. I generally don't carry a purse at all on island if I'm with Eric, except for a very small one and I don't wear it on my shoulder, even walking down the street in Grand Case.