If the Commissioner of Agriculture shall find, upon examination, analysis or test, that any person has violated any of the provisions of this chapter, other than Articles 9 or 11 hereof, he or his duly authorized agent may institute proceedings in a court of competent jurisdiction to have such person convicted thereof. Or the Commissioner, in his discretion, may report the results of such examination to the Attorney General, together with sworn statement of the analyst, duly acknowledged, and such other evidence of such violation as he shall deem necessary. Such sworn statement shall be submitted as evidence in any court of this State in any proceeding instituted under this chapter, other than Articles 9 or 11 hereof; but, upon a motion of the accused, such analyst shall be required to appear as a witness and be subject to cross-examination. The Attorney General or, in his discretion and at his direction, the attorney of the county or city in which the alleged violation has occurred, shall institute proceedings at once against the person charged with such violation. Such proceedings for violations shall be instituted according to the laws of this State.