Student cannabis use and enforcement activity in Canada: 1977-1987.

This paper explores the relationship between cannabis use among Ontario students and enforcement activity between the years 1977 and 1987. Although the results clearly showed a significant decline in the use of cannabis during this time period, none of the enforcement activity factors were significantly related to prevalence of use. The only significant association showed that quantity of cannabis-related seizures, was correlated with students perceived availability of cannabis. Data with longer time trends and more intervals are needed to establish the existence of any relationship between prevalence of drug use and enforcement activity.