Whenever the Attorney General of the United States has reasonable cause to believe that a person is engaged in a violation of this chapter, the Attorney General may bring a civil action in the appropriate district court of the United States requesting such relief, including a permanent or temporary injunction, restraining order, or other order, against the person, as the Attorney General determines to be necessary to restrain the person from continuing to engage in, sanction, promote, or otherwise participate in a professional boxing match in violation of this chapter.