Metro Police East Precinct officer John Cumberland has resigned from the department effective Thursday.
Cumberland was arrested last month on charges of drunken driving and possessing a firearm while under the influence of alcohol after he crashed his police vehicle in a ditch on Newsome Station Road. He was off-duty at the time of the crash.
The officer registered 0.12 percent in a breath alcohol test after the Sept. 24 crash, police said. A person is considered to be legally under the influence of alcohol with a reading of 0.08 percent.
The internal investigation of Cumberland, who was decommissioned on Sept. 24, ends with his resignation. He had been with the police department for five years.
DUI charges are still pending.