Police dash cam,Summerville,South Carolina:April 19/08: S.C.A state senator from Summerville has been charged with driving under the influence, and the Dorchester County Sheriff's Department has released the dashboard camera video of him.

Dorchester County deputies say Randy Scott was pulled over Saturday night for driving erratically and arrested after failing a field sobriety test.

But Scott's lawyer says the Summerville Republican struggled with walking heel-to-toe in the rain because he lost a leg in a hunting accident and wears a prosthetic limb.

Defense attorney Reese Joye also says a videotape recorded by police shows Scott was not intoxicated according to a breath test.

Scott is up for re-election this year and Joye called the arrest politically motivated.

Deputies refused to provide more details about the arrest Sunday. Scott was released from jail on a $992 bond.