From what I have seen if a person has murderous intent they are less likely to try and kill someone if the other person has a way to defend themselves.
Please enlighten me on how the T&T government allows it's citizens to protect themselves against thugs.
I believe you can get a gun as long as you have a license for it but I don't know the details about how to get one. Mind you, it won't really "protect" you. Sometime ago a businessman visiting a friend in an affluent area in the West was brutally murdered when some thieves entered the house of his friend. He had on his possession a gun, I believe he tried to use it but he was killed regardless.
Rather off topic, but...
This is NOT unique to criminals only but some average folks keep a machete in their cars at all times. Say the wrong thing, get into an argument on traffic and they will get out and threaten with it. I have seen it.