By TIM WILLERT Staff Writertwillert@oklahoman.comOklahoma City Public Schools is not only revising its student code of conduct, but also the role police officers play on elementary school campuses. A district official told school board members this week that officers often are used to scare or punish children rather than mentor them. "This year, unfortunately, I believe our elementary schools have used them in a more punitive manner," said Teri Bell, the district's executive director of student support services.Read more on NewsOK.com