Whenever it appears that any person is violating or threatening to violate any provision of this chapter or any rule, regulation or order issued thereunder or is committing any offense described in section 836 of this chapter, the department, acting by the attorney general, may bring suit against such person in any court of competent jurisdiction to restrain the person from continuing the violation or from carrying out the threat of violation. In any such suit, the court has jurisdiction to grant to the department without bond or other undertaking, such prohibitory or mandatory injunctions as the facts may warrant, including temporary restraining orders or preliminary injunctions.