NYPD officers had sharply increased their reliance on stop and frisk in the preceding years, making a record 686,000 stops in 2011, with the vast majority involving younger African-American or Hispanic men. Nearly 90 percent of the people subjected to stops that year were completely innocent, while many others were ticketed or arrested for lower-level charges, often including drug possession, according to NYPD data cited by the New York Civil Liberties Union. And although supporters have touted stop and frisk as an effective deterrent of violent crime, a 2013 review of 4.4 million stops showed that police confiscated just 5,940 firearms, a rate that amounted to roughly 0.1 percent of all encounters.
Article source: https://www.huffingtonpost.com/entry/nyc-crime-stop-and-frisk_us_5a4bc91ee4b06d1621bb39ba?utm_hp_ref=new-york-city