decisive case

I tried to spend time with all of them; there was no telling who might make a decisive case for peace when they were alone in their separate delegations.

That same year, in a decisive case, it failed to ban Theodore Dreiser's An American Tragedy.

The Council of Economic Advisers helped persuade President Kennedy to cut taxes and thus spur a recovery - a decisive case of applying the theories of John Maynard Keynes to public policy.

The last decisive case was the unsuccessful lawsuit of Prince Ernst August of Hanover in September 2006, when the Federal Administrative Court decided that the prince had no right to compensation for the disseized estates of the House of Hanover around Blankenburg Castle in Saxony-Anhalt.