A former state corrections officer was indicted on Friday on four charges of gross sexual assault. The indictment was handed up by the grand jury in Cumberland County.

Bradford Howard, 36, of Lyman, pleaded not guilty in May to the initial complaint against him, which alleged that he had sex with a prisoner.

Howard was a corrections officer at the Maine Correctional Center in Windham, beginning in July 2006. He resigned from his job earlier this year.

If convicted, Howard would face a maximum of 10 years in prison for each felony charge.