First Deputy Police Commissioner Benjamin Tucker is planning to write a book detailing his time in the police department under Mayor Bill de Blasio.

Tucker — the second in command for the NYPD — Police Commissioner Dermot Shea and many other high-ranking NYPD officials are stepping down at the end of the month as Mayor-elect Eric Adams takes over at City Hall. 

Tucker, who served for nearly eight years as a police executive, said he's happy with the work he has done to try to improve the department.   

NY1's Dean Meminger interviews First Deputy Commissioner Benjamin Tucker. (NY1 photo)

"I didn't come here to waste my time. I didn't come here to sit in the corner office," Tucker said in an interview with NY1's Dean Meminger. "I am here. I know what I am doing."

Tucker said he has helped in numerous areas, including the revamping of training and discipline of officers, the deployment of police body-worn cameras and the public release of videos when there is a police shooting.

Tucker served under three police commissioners. 

Mayor de Blasio passed him over twice for the top job of commissioner.  He wouldn't share his feeling about de Blasio's style of management at the NYPD, but said he would write plenty in a book.

Tucker also said he hasn't met with Adams since he won the election, but said he would like to speak with him, a retired NYPD captain, to pass along what he knows about changes in the department.    

"He has been out of the job a long time, and some of the people he has doing his transition have been out of the job a long time," Tucker said. "The department has moved forward. We are at a place that is very different even just where we were eight years ago."