Only government prosecutors have the authority to bring criminal charges against someone. If you believe that you have been the victim of a crime or if you have knowledge of a crime that has been committed, you should contact the appropriate law enforcement official. If you believe the crime is a violation of federal law, you should contact the United States Attorney’s Office for the district in which the crime is alleged to have occurred. If you believe the crime is a violation of state law, you should contact the police or the State’s Attorney’s Office for the judicial district in which the crime is alleged to have occurred.