"… that a Tribunal is obliged, as indeed is expressly recorded in rule 9 of the tribunal Procedure Rules, to conduct the hearing in a fair and balanced manner, intervening and making its own enquires in the course of the hearing of such persons appearing before it and such witnesses as are called before it as it considers appropriate, so as to ensure [and we emphasise these next few words] due consideration of the issues raised by, or necessarily implicit in, the complaint being made."