Syarikat Kenderaan Melayu Kelantan Bhd. v Transport Workers Union [1995] 2 MLJ 321

Jurisdiction is exceeded when error of law is committed, an unfair procedure is adopted,or where the decision reached is unreasonable. However,it is neither feasible nor desirable to attempt an exhaustive definition of what amounts to an error of law,  for the categories of  such an error are not closed.  at page 322.