 Frederick Police investigated the incident, but the Montgomery County State's Attorney's Office handled the case in court. The court proceedings took place at the Frederick County Courthouse. To read more, go to our website at WFMD.com. Fire destroyed a barn in Jefferson on Sunday. Just before 11.30 a.m., firefighters responded to the 5900 block of Pool Road and found a 40-foot by 60-foot structure fully involved in flames.