(b) The notice of hearing also may provide that the labor camp may be ordered vacated if such an order is determined to be necessary for the health and safety of its occupants or of the community in which it is located. If the notice of hearing contains this provision and such an order is determined to be necessary, then the officer shall issue such order.

(c) The hearing officer acting pursuant to this subdivision may issue subpoenas which shall be regulated by the civil practice law and rules. 4. Before the effective date of an order or judgment enjoining the continued operation of a camp pursuant to subdivision two or of an order directing the vacating of such camp pursuant to subdivision three, the officer shall notify the county agricultural agent, the representative of the nearest office of the state employment service, and the county social services commissioner. 5. A notice required by this section may be served upon the owner or operator of the camp in the same manner as a summons in a civil action, or by registered mail to such owner or operator at the address filed by him in the department or county health department or, if an address is not so filed, to his last known address or place of residence. 6. An officer may request and shall receive from all public officers, departments and agencies of the state and its political subdivisions such cooperation and assistance as may be necessary or proper in the enforcement of the provisions of this section. 7. Nothing contained in this section shall be construed to limit the duty or power of an officer to act with regard to an immediate threat to the health of the occupants of a camp or the community in which it is located, or to alter or abridge any of the duties and powers now or hereafter existing in the commissioner, state district health officers, county boards of health, county commissioners of health, local boards of health or other public agencies or public officials, or any private party. 8. As used in this section, the term "officer" shall mean the commissioner, or the county commissioner of health or the state district health officer having jurisdiction.