Watch a Chicago Cop Horse-Collar Tackle a Woman

CHICAGO, IL - Chicago police are reopening a use of force investigation into a May 2011 incident in which robbery suspect Tiffani Jacobs was thrown to the ground by a police officer.

Police Chief Eddie Johnson has stripped two police officers involved in this incident of their police powers.

Jacobs and Floyd May were accused of robbing a McDonald's on the North Side and initiated a chase.

Watch here at the 6:53 mark of the video as a police officer grabs Jacobs, who appears to have her hands up, and throws her to the ground before other officers swoop in.