NYPD’s first female police commissioner vowed to start a “new chapter” and reduce crime with help from the community on her first day on the job.

Commissioner Keechant Sewell, who is also the city’s third black police commissioner in its 176-year history, assumed office on Jan. 1 this year. The law enforcement leader posted a video on Twitter declaring the start of a community effort to drive out crime.

“As we begin the next chapter in policing, we’re calling on all New Yorkers to help us drive crime out every community. Our path to success means working together – and with fresh eyes & bold ideas, we will become the blueprint for effective and fair public safety. We start today,” the tweet read.

It’s going to be a difficult job for Sewell.

According to the NY Daily News, New York City has seen its most violent year since 2006 with an increase in both homicides and shootings.

In addition, just hours after Sewell was sworn into office, an NYPD officer was shot and suffered a fractured skull, to which she expressed her sympathies.

Sewell, formerly the chief of detectives at the Nassau County Police Department, said one of her primary objectives is taking guns away from gangs.

“We are going to be rolling out some gun and gang initiatives in the near future,” she said. “We have some very promising investigations that we think are going to have significant impacts in the future.”

Sewell is a native New Yorker, and grew up in Queens.

“I feel an overwhelming sense of responsibility and privilege to be the first woman in this role and to be something and someone that little girls look up to. Me being in this position sets a new tone and starts a new chapter,” she said.