Keechant Sewell, the Nassau County chief of detectives, will become New York City’s first female police commissioner, taking over the nation’s largest police force at a critical moment.
Chief Sewell’s appointment, which is expected to be announced on Wednesday, was seen as one of the most important decisions for Eric Adams, the incoming mayor, as he begins to fill out his administration.
Her selection was confirmed on Tuesday night by Evan Thies, a spokesman for Mr. Adams. Chief Sewell, 49, was chosen from among a field of rumored candidates from within the New York Police Department and from larger police departments around the country.
Mr. Adams, a former police captain, ran as a centrist in the Democratic primary, promising to address a troubling rise in violence and to rein in police abuse. He will be counting on Chief Sewell to help him strike that balance.
Mr. Adams said in a statement that Chief Sewell was “a proven crime fighter with the experience and emotional intelligence to deliver both the safety New Yorkers need and the justice they deserve.”
Chief Sewell comes from a department that has about 2,400 uniformed officers — less than a tenth of the size of the roughly 35,000 officers employed by the New York Police Department.
