Commissioner to provide for inspection of articles exposed for sale for human food.

It shall be to the duty of the Commissioner to make provision for the constant and vigilant inspection of animals, carcasses, meat, poultry, game, flesh, fish, fruit, vegetables, corn, bread, flour, dairy produce and any other article exposed or hawked about for sale or deposited in or brought to any place for the purpose of sale or of preparation for sale and intended for human food or for medicine, the proof that the same was not exposed or hawked about or deposited or brought for any such purpose or was not intended for human food or for medicine resting with the party charged.