This is the shocking moment a car thief rammed two police cars during a dramatic chase - dragging one officer down the street.

Thug Reiss Dunn, 25, was blocked in by two unmarked police vehicles when he made the desperate attempt to escape arrest on August 27, 2014.

Dramatic dash-cam footage shows the white Vauxhall Insignia swerve past one officer's BMW on the wrong side of the road, before smashing head on into the other.

A brave cop then clings on to the side of the stolen car before falling off as the motorist speeds away from the scene in Erdington, Birmingham

Another officer can be heard shouting: "Come on, come on," before the vehicle swerves along the road and after he rams the second he says: "Don't even try."