A Thomasville, Ga., woman who worked at the Bainbridge Probation and Substance Abuse Center (BPSAC) was arrested by the Georgia Bureau of Investigation on Thursday, according to a news release.

Alishia Nicole Williams, 42, of Thomasville, was formerly the director of nurses at the BPSAC.

She was arrested for theft and violations of the Racketeering Influence and Corrupt Organization ACT (RICO), as the result of a yearlong investigation by the GBI’s Thomasville office and the Georgia Attorney General’s Office.

Williams, accompanied by her attorney, was allowed to turn herself in at the Richmond County Jail in Augusta, Ga.

The investigation by GBI agents alleges that, over the course of a year in 2009, Williams fraudulently claimed more than $20,000 in state funds as overtime payments at her job.

Williams allegedly submitted the time sheets claiming the overtime to state payroll officials in Augusta, Ga., resulting in her indictment by a grand jury in Richmond County, Ga.

The GBI office in Thomasville is continuing to investigate.