New York City's stop-and-frisk policy reduces crime
No research has ever proven stop-and-frisk to be effective
Since 2002, the New York City police department has used “stop and frisk,” which The Huffington Post described as “a strategy police officers use to reduce crime by stopping, questioning and searching people they consider suspicious.” But there is no evidence that this is an effective way to fight crime. The New York Civil Liberties Union notes:
No research has ever proven the effectiveness of New York City’s stop-and-frisk regime, and the small number of arrests, summonses, and guns recovered demonstrates that the practice is ineffective. Crime data also do not support the claim that New York City is safer because of the practice. While violent crimes fell 29 percent in New York City from 2001 to 2010, other large cities experienced larger violent crime declines without relying on stop and frisk abuses: 59 percent in Los Angeles, 56 percent in New Orleans, 49 percent in Dallas, and 37 percent in Baltimore.
Furthermore, New York magazine reported in 2012 that “shootings have remained steady while the number of stop-and-frisks skyrocketed.”