 After a short anti-U-boat patrol from Polyarnoe, in June 1942 "Trident" was tasked with providing cover to convoys QP 13 and PQ 17 in the Barents Sea and Norwegian Sea, before returning to the UK.In August 1942, Hezlet was mentioned in dispatches for his service in escorting these convoys.Hezlet became a special training officer on the banks of the River Clyde in September 1942, at the informally named "HMS "Varbel"", training the crews of midget submarines to attack the German battleship "Tirpitz".