It would probably be too flattering to James to suppose that he had any well-considered plan for extending his authority over the foreign fishermen frequenting his coasts, or for extracting from them a tribute for their liberty of fishing. But the existence of the tax of the assize-herrings in Scotland clearly offered the best means for bringing that about if it was to be brought about at all. It has been explained that in the negotiations which followed the issue of the proclamation of 1609, Sir Noel Caron laid his finger on a weak spot in the English case, by pointing out that the assize-herring had never been levied on the native fishermen who fished where the Dutch fished at the North Isles. The special ambassadors in 1610 also mentioned that their fishermen had never been asked to pay it, though they naturally did not lay stress on the point. James resolved that those omissions should be remedied. In 1610 he granted the assize-herrings to Captain John Mason, who was employed with two ships of war in that and in the following year on the coast of Scotland. Mason accordingly made strenuous efforts to collect the tribute. The fishermen of Fifeshire, who carried on a herring fishery at Orkney and Shetland, resisted the unaccustomed tax, and in 1612 raised an action of _absolvitor_ before the Lords of the Privy Council and gained their case.[308] The Lords of the Council decided that the “adventure” of the fishermen at the Northern Isles was of the nature of a merchant voyage, and that the fishermen had no right to pay any such assize, which had never been craved of them before.[309]