[3] Mr Bull represented Mr Serafini and the TWU in the hearing, calling Mr Serafini to give evidence. Statements by three Holcim drivers were also admitted into evidence without the need for them to be subject to cross-examination: Mr Craig Arnold, Mr Dave Thomas (currently TWU delegate) and Mr Roger Woll. Mr Bull has sought Mr Serafini's reinstatement in employment. Mr Moir represented Holcim in the hearing. He called seven witnesses in the hearing to give evidence: Mr Mark Noble, transport and logistics manager, Mr Geoff Gill, the regional transport manager, Mr Mario Copo and Mr Craig Ridding, transport supervisors, Ms Tam Beveridge, a safety and health systems manager, and Mr Denis Renton and Mr Steve Couzins, raw materials transport operators. Statements by Mr Anthony Quinn, safety and health co-ordinator, and Ms Penny Karvouniaris, a solicitor, were admitted into evidence without their being required for cross-examination. Mr Moir argues that there was no justification for my intervention in support of Mr Serafini.