I haven't digested all this yet, but there's an interesting little brouhaha about a recent study released by the NYCLU by Queens College Professor Harry Levine and Deborah Small. The paper is called, “Marijuana Arrest Crusade: Racial Bias and Police Policy in New York City, 1997-2007.” The report claims that 35,000 people a year are arrested in New York City for marijuana possession. This figure is somehow disputed by the NYPD. I’m not sure who’s right.
[Update: For the record, Prof Levine is absolutely right. See here for more stats and information.]