NEW YORK - After an eventful first weekend on the job, the city's new police commissioner James O'Neill was officially sworn in Monday.

O'Neill had his first full day in his new position on Saturday.

His formal swearing in took place at police headquarters in Lower Manhattan Monday.

He took over for former commissioner Bill Bratton, who appointed O'Neill as his chief of department during his tenure.

"We all became cops. We all joined law enforcement to do good and to do right," O'Neill said. "And I think that's what everybody in this city, that's what everybody in this state, that's what everybody in this nation needs to understand. We did this because we want to do good. Nobody on this job is ever going to get rich. And we do it because we love what we do and we love the people of this great nation."

The new chief of department, Carlos Gomez, was also sworn in.