In the summer of 1814, Turner succeeded to the command of schooner "Scorpion", and he cruised Lakes Erie and Huron in her supporting army operations around Detroit and blockading British forces at the Nottawasaga River and Lake Simcoe. On 6 September 1814, Turner and his command were captured by the British when he brought "Scorpion" alongside the former American schooner "Tigress" which, unbeknownst to him, had been captured a few days earlier. After a period of imprisonment at Fort Mackinac, Lt. Turner returned to the United States in exchange for a British prisoner of war.