After the signing of the Treaty of Amiens, Bonaparte sent out a squadron commanded by Rear-Admiral Linois, conveying General Charles Decaen, who was commissioned to administer the former French possessions in India, which, under the terms of the treaty, were to be surrendered to France. But when the expedition arrived at Pondicherry, the Governor-General of India, Lord Wellesley, gave orders to his subordinates that no concessions were to be made to the French without his express authority; and as he stubbornly refused to give his warrant for surrendering an inch of territory, there was nothing for General Decaen to do but sail away to Mauritius, then, as already remarked, a French colony. Lord Wellesley acted under secret orders from the Secretary of State, Lord Hobart, dated October 17, 1802, only seven months after the treaty was signed, for the British Government did not believe in the permanency of the peace and did not desire the French to re-assert a footing in India, where their presence, in the event of a renewal of hostilities, would be dangerous. When the war was renewed, Linois, with his squadron, was still in the Indian Ocean. The Isle of France was not a self-supporting colony, but had to depend on money and supplies obtained either from Europe or from the vessels of the East India Company, which, from time to time, were captured by French privateers and men-of-war. When Nelson shattered the naval power of France at Trafalgar in 1805, and vigilant British frigates patrolled the whole highway of commerce from Europe to the Cape of Good Hope, Decaen's position became precarious. The supplies sent out to him were frequently captured by the enemy; and had it not been that Port Louis became a regular nest of adventurous French privateers--"pirates," the British called them--who frequently found a rich prey in the shape of heavily laden India merchantmen, his garrison must soon have been starved out. The incident to which reference has been made occurred in 1804, and is probably without a parallel in naval history as an example of the effect of audacity acting on timidity. It was known that a convoy of ships belonging to the East India Company was to leave Canton early in the year. Linois, with five vessels, including his flagship, the Marengo, 74 guns, sailed for the Straits of Malacca to intercept them. On February 14, near Polo Aor, to the north-east of Singapore, the French sighted the convoy, sixteen Company ships, fourteen merchantmen and a brig, all laden with tea, silks, and other rich merchandise.