Surveillance video captured at the Colorado Springs Memorial Hospital in 2013 shows an officer using excessive force on a young woman.

The video shows the officer, identified as Tyler Walker, pulling Alexis Acker out of a chair and slamming her face to the ground after she kicked him in the groin area.

Ms Acker’s civil attorney confirmed that in May he filed a letter with the city indicating he is preparing a lawsuit.

The Colorado Springs Independent says Acker may seek as much as $500,000 in the suit. The letter reportedly says Acker suffered injuries to her face, head, teeth and jaw that have had long term health consequences.

The Independent also reports that since 2010, Colorado Springs has paid $412,500 to settle claims of excessive force.