Daryl Khan, the New York bureau chief of the Juvenile Justice Information Exchange and an adjunct professor at the CUNY Graduate School of Journalism, and Derrick Haynes, a Harlem community advocate, discuss the uptick in gun violence in New York City this year and what the NYPD's scaled back stop-and-frisk policy, gangs and other factors have to do with this surge.

Derrick Haynes (L) and @JJIEnews' Daryl Khan (R) in the studio: pic.twitter.com/vuqCVs8l67

— Brian Lehrer Show (@BrianLehrer) June 3, 2015

If you're going to go into communities & raid & arrest people, you need to put programs in place to help who's left, says Derrick Haynes.

— Brian Lehrer Show (@BrianLehrer) June 3, 2015

Police officer says crime is going up because police are afraid to be wrong. defends @NYPDnews @BrianLehrer http://t.co/Prddv1Mlau

— LeonardWitt (@LeonardWitt) June 3, 2015

People used to know officers' names, officers knew residents' names. Now, it's not like that. "There's a fear factor." --Derrick Haynes.

— Brian Lehrer Show (@BrianLehrer) June 3, 2015

Police now walk through our neighborhoods like they're part of an army brigade, says caller Trey from The Bronx.

— Brian Lehrer Show (@BrianLehrer) June 3, 2015