http://www.24dash.com/content/news/viewNews.php?navID=7&newsID=2762
"Smoking cannabis is strongly associated with delinquent and aggressive behaviour in young teenagers, a major study has found. Researchers in the Netherlands revealed the link after surveying more than 5,500 adolescents aged 12 to 16.
The results showed that 'externalising' problem behaviour, such as criminality and aggression, increased with higher use of cannabis."
