Then for a while tricky court cases were decided by judicial combat: God was the ultimate arbiter.

"Putin is trying to balance these two groups and he remains the ultimate arbiter."

In turn, Cable would have been the ultimate arbiter of the commission's recommendations.

Though everybody pays lip service to performance, politics is often the ultimate arbiter of their fate.

The ultimate arbiter, cash, convinced him we would do it my way, however.

Federal officials, the ultimate arbiters of the country's air quality, are equally encouraged.

The ultimate arbiters of the A380 will be the airlines and the passenger.

Having completed the task, he has moved on with this collection to being the ultimate arbiter of next year's dress.

He is confident, however, that the ultimate arbiters would approve.

"The court should be the ultimate arbiter to determine whether the agreement is in the public interest," he said.