The phrase "a final authority" is correct and usable in written English.
It can be used to refer to someone or something that has the ultimate decision-making power or control in a particular context.
Example: "In matters of policy, the board of directors serves as a final authority on all decisions."
Alternatives: "the ultimate authority" or "the supreme authority".
Without a final authority, many disputes can never be resolved.
"We cite Lieber as a final authority, regardless of medical specialty," Linden said.
Others may convey more juice and more pain, but Mr. King radiates the majesty of a final authority.
But the difference that pops out at you when you look at both campaigns is that the Bush campaign has a final authority, and that's Karl Rove.
Tall, blond and gaunt with hooded eyes in a masklike face, Mr. von Sydow, now 83, has always projected the weight of a final authority, whether holy or demonic.
Joseph Smith continues to be regarded by many Mormons as a final authority on issues of belief, though so much of his legacy, including plural marriage, had to be compromised in the grand bargain by which the moguls of Salt Lake City became plutocrats defining the Republican party.
The shift from classical to romantic art, then, represents a broader shift between a culture whose final authority was an aesthetic one and a culture in which this authority was handed over to religion, and thus represents a shift in the authoritativeness of different cognitive forms.
The supervirility and unrelenting willpower buried in this sound imply an implacable final authority.
Two years ago, Arthur succeeded his father a second time, when he became chairman of the New York Times Company — a position giving him final authority over a business his family considers a sacred trust.
Yet the system's ambiguities also preserve the need for a monarch with final authority, and this means that the personality, moods, and tastes of the head of state are felt in the lives of his subjects in ways that would be unimaginable to citizens of a modern democracy.
However, then there is a second claim of the 'sovereignists', that is that the establishment of supranational, coercive power would mean a competition for final authority – for control of centralised authority – with the nation states.4 The case of the EU shows, as we shall see, that there need not be a struggle for final authority, when the legal basis is the same for all adjudicative bodies.
