In a new editorial, Jacob Sullum at Reason writes of New York City's little-noticed marijuana crackdown.

While marijuana arrests have risen between two- and three-fold nationwide since 1990, the increase in New York has been much more dramatic. "From 1997 to 2006," sociologist Harry Levine and drug policy activist Deborah Small note in the NYCLU report, "the New York City Police Department arrested and jailed more than 353,000 people simply for possessing small amounts of marijuana. This was eleven times more marijuana arrests than in the previous decade."

Based on their analysis of arrest data and their interviews with police, arrestees, and public defenders, Levine and Small conclude that the pot busts are largely a byproduct of the NYPD's aggressive "stop and frisk" tactics. The U.S. Supreme Court has ruled that police may briefly detain people they suspect of involvement in criminal activity and, as a precautionary measure, pat them down for weapons. Taking advantage of this Fourth Amendment loophole, New York City police stopped and frisked people more than half a million times in 2006.

...

Levine and Small note that busting pot smokers is a relatively safe and easy way to pad arrest figures, which creates the illusion of productivity, and generate overtime pay, a practice known as "collars for dollars."

From the collars' perspective, getting arrested for a trivial, victimless offense, which saddles them with criminal records that can impair their ability to obtain an education and make a living, is humiliating and embittering. It is especially rankling because police seem to be targeting poor black and Hispanic men for treatment that would not be tolerated if it were aimed at affluent white New Yorkers.

Survey data indicate that among 18-to-25-year-olds, the age group where the pot busts are concentrated, whites are more likely than blacks or Hispanics to smoke marijuana. Yet Levine and Small found that in New York blacks and Hispanics are, respectively, five and three times as likely to be arrested for marijuana possession.