Adequate and well-administered laws for advancing the trade and securing the defense of the empire were, indeed, the primary objects of Grenville's colonial legislation. Grenville, who was the fingers rather than the soul of good government, could not endure the lax administration of the customs service which in the course of years had given the colonies, as it were, a vested interest in non-enforcement. He accordingly set himself to correct the faults which Walpole had condoned in the interest of the Hanoverian succession, and which Newcastle had utilized in the service of the Whig faction. Commissioners of the customs, long regarding their offices as sinecures and habitually residing in England, were ordered to repair at once to their posts in America. Additional revenue officers were appointed with more rigid rules for the discharge of their duties. Governors were once more instructed to give adequate support in the enforcement of the Trade Acts. The employment of general writs, or "writs of assistance," was authorized to facilitate the search for goods illegally entered; and ships of war were stationed on the American coast to aid in the suppression of smuggling. More careful administrative supervision was but the prelude to additional legislation. Throughout the eighteenth century, the trade of the Northern and Middle colonies with the French and Spanish West Indies had been one of the most extensive branches of colonial commerce. To divert this traffic to the British sugar islands, Walpole had carried the Molasses Act in 1733. But the Molasses Act, though many times renewed and now in 1763 once more about to expire, had never been enforced, and had never, therefore, either benefited the British sugar planters or brought any revenue into the treasury. It was to secure one or both of these advantages that Grenville procured from Parliament the passage in 1764 of the law known as the Sugar Act; a law which reduced the duty upon foreign molasses imported into the continental colonies from 6_d._ to 3_d._, and imposed new duties upon coffee, pimento, white sugar, and indigo from the Spanish and French West Indies, and upon wine from the Madeiras and the Azores. Even such men as Bernard, Hutchinson, and Colden believed that the new duties would destroy a trade which they asserted was indispensable to the Northern colonies and highly beneficial to the commerce of the empire. But the sugar planters, powerfully represented in Parliament, demanded protection, while to Grenville's mind the systematic violation of a law was rather an argument against its repeal than an evidence of its impracticability. The measure, therefore, became a law; and for its better enforcement the jurisdiction of the admiralty courts was extended, and naval officers were empowered to act as collectors of the customs.