DISCRETIONARY ORDER

Federal

Putting aside these subtleties, what is common to all of these verbal formulations is that in the absence of an error of law or legal principle an appellate court cannot interfere with a discretionary order unless there is an obvious, serious error that undercuts its integrity and viability. This is a high test, one that the case law shows is rarely met. This deferential standard of review has applied in the past to discretionary orders appealed to this Court and it is the test we shall apply to the interlocutory discretionary order made by the Federal Court that is before us in these appeals.