Prosecutors have charged former Greene County Sgt. Robert Green with misdemeanor assault for using a Taser to threaten a woman in the lobby of the courthouse last month.

A female legal assistant said that on April 8 Green, a 19 year veteran of the sheriff's department, pulled his Taser from its holster and came toward her in an aggressive manner. She said she put her hands in the air and saw a red laser light on her chest. Court documents show the woman told deputies she felt "trapped, detained, threatened and like she could not move."

After filing a complaint with the sheriff, Green resigned. He was also head of security at the courthouse.

Sheriff Jack Merritt said Green was the kind of employee who wore his uniform proudly on his day off.

Green told detectives he "screwed up." He told them he was joking with her.