Crimes of Indiscretion: Marijuana Arrest in America is a statistical report published by norml-foundation in 2005 with comprehensive analysis of marijuana-related arrests in the United States between 1995 and 2002. The study reports arrest statistics by region, state, age and more. The report argues that “Marijuana arrests doubled throughout the 1990s with no discernable impact on use, safety, or availability.”
The full report can be read here.