Oklahoma cops refuse to release dashcam video of chokehold incident

This is the continuation of "Thug Cops."

If the purpose of the dashcam video's is to document what happened--then what's the problem with releasing the video? What are they hiding?

http://carlosmiller.com/2009/06/13/oklahoma-cops-refuse-to-release-dashcam-video-of-chokehold-incident/