A few salient facts about NYC Stop and Frisk:

From a 2012 article:
In 2002, when Mr. Kelly last took office, officers stopped 97,296 New Yorkers and the city reported 587 homicides. Last year, those numbers were 685,724 and 532.

Of those frisked in 2011, a weapon was found just 1.9% of the time.
Last year, the NYPD made more stops of young black men than there are young black men in the city’s population. 158,406 young black men live in New York City and the NYPD made 168,126 stops t
forbes.com
(EDITED TO REMOVE DOUBLE QUOTE, BUT IT PROBABLY DESERVED TO BE REPEATED)

The NYPD and politicians have repeatedly justified the racial disparity in stop and frisks saying that they cops essentially go where the guns are, i.e. minority neighborhoods. Yet, only 1.9 percent of frisks in 2011 turned up weapons and interestingly, according to the NYCLU, “a weapon was found in only 1.8 percent of blacks and Latinos frisked, as compared to a weapon being found in 3.8 percent of whites frisked.”

huffingtonpost.com

It doesn’t work, it’s very expensive, and IT’S RACIST AS HELL.