Mayor Bill de Blasio and the NYPD offered more details on Thursday about new police training designed to improve police-community relations, in the wake of a grand jury’s decision not to indict a police officer in the chokehold death of Eric Garner.

Speaking at the police academy in Queens, de Blasio said the three-day training will include changing the way officers talk with and listen to members of the communities they police, and preventing potentially dangerous situations from escalating.

“It will have an impact on millions of people, because every interaction that every officer has with their fellow New Yorkers after they are trained will be different,” de Blasio said.

Benjamin Tucker, the city’s new First Deputy Commissioner, outlined some of the policing skills officers will be trained on. As part of the program, probationary officers will also be partnered with senior officers, who will act as their mentors. He said officers will get to know the communities they’ll be policing better, by meeting with local leaders, business owners, and school officials to learn the issues the community is facing.

"This is a dramatic, earth shattering shift for the NYPD," said Molloy College Professor John Eterno, a retired NYPD captain who taught at the police academy. "The NYPD is shifting from this numbers culture to a culture of community awareness which is very, very different."

Police Commissioner Bratton said the new training has already begun for some officers, and by June, nearly 22,000 officers will have completed the program. De Blasio and Bratton said the training will foster respect for police, help restore the trust of the communities they serve, and ultimately, improve police-community relations. The city has committed $35 million to the training this fiscal year, including overtime costs.

“These are extraordinarily foundational concepts for change,” de Blasio said, adding that new training techniques were developed by “guys who started out as beat cops, lived this life of this police force for decades, and are applying the lessons that they learned to help other cops do their jobs even better, keep everyone safer.”