Some Oklahoma City police officers will again be wearing body cameras by the first of the year after the department and the officers' union reached an agreement about their usage and review.

The first group of officers is expected to be trained and equipped with the cameras by Jan. 1, Police Chief Bill Citty said Tuesday. They will be implemented across all divisions and shifts as evenly as possible, he said, and the newest officers on the force will receive them first.

"I apologize that it takes so long ... but the devil's always in the details," Citty said. "The public has to understand a few words in some of these procedures ... can really make a huge difference, not only with management's ability to actually hold officers accountable and then also in what's fair to the officers out there that are having to live with and use these cameras on an ongoing basis."

The body cameras were put on hold in June following police union complaints about footage audits, when cameras should be used and how management would review video.