An arbitration award that contains material errors of law and fact, demonstrates a failure by the arbitrator to properly apply his mind to the gravity of proven misconduct, and results in a sanction that is disproportionately lenient in circumstances where serious financial misconduct by a municipal accounting officer has been established, constitutes a decision that no reasonable arbitrator could have reached and is reviewable under section 145 of the Labour Relations Act. Where a municipal accounting officer deliberately fails to report irregular expenditure worth millions of Rands to the Municipal Council in violation of statutory obligations, such conduct contains an element of dishonesty and is destructive of the employment relationship. Where issues have been properly ventilated at arbitration and the Labour Court is in as good a position as any arbitrator to determine the matter on the merits, consistent with the principles of economy, expedition and finality in labour disputes, the Court may substitute its own decision rather than remitting the matter. A party objecting to the completeness of the record must raise such objection in the answering affidavit and lay a proper factual basis for the objection.