I've been to Jamaica. I'd guess that abject poverty, an almost unimaginable gap between the rich and the poor (i.e., hardly any noticeable middle class), and public/official corruption has more to do with the crime rate in Jamaica than does the use of marijuana.
Not all poor people become criminals. Try again.
Funny, isn't it, how these guys have shown no interest in discussing other factors that might lead to a high crime rate? A high unemployment rate, an uneducated populace, and a lack of official action have nothing to do with it. It's the pot.
Bingo. Does anyone remember their science education at all? Remember the concept of controls. Now, in this doctor's observations of the effects of marijuana on behavior, tell me exactly what is and is not controlled?
Sorry, but horseshit dressed up as science is still horseshit.