The commissioner of agriculture, markets, and food may administer the provisions of this subdivision, adopt such rules, pursuant to RSA 541-A, as may be necessary to carry this subdivision into effect, and approve all methods of slaughter used under the terms of this subdivision. He or she may, by administrative order, allow any person a single temporary exemption from compliance with any provision of this subdivision for such period of time as he or she shall determine reasonable, not to exceed one year. The commissioner of agriculture, markets, and food shall cause to be prosecuted any slaughterer who fails to comply with the provisions of this subdivision. Any agent authorized by the commissioner, upon being designated, in writing, for that purpose by the sheriff of any county in this state, may, within such county, at any time inspect the premises and operations of any slaughterer and, if he or she deems it advisable, request an investigation and appropriate action by the commissioner of agriculture, markets, and food.