(KLIX)- Twin Falls Police have arrested a man who they say threatened bank employees he would come back with a mask and gun. According to Lt. Craig Stotts 32 year old Mark Alan Olson was arrested and charged with disorderly conduct and trespass from property. Mid afternoon Thursday police say Olson walked into a Zions Bank to cash a check. He presented a mutilated  license and the teller would not accept it. Police say the man became upset and threatened to come back with a gun and mask. About an hour later the man returned to the bank at which the teller hit the panic button that alerted police. Police say the man produced a temporary license he had gotten, the teller then cashed the man's check and he left. However, the panic button had already been hit and police caught up to Olson and arrested him.