The appellants were employees of the respondent company. On 18 May 1995, they were suspended without pay on allegations that they had engaged in unlawful collective job action in the form of a go-slow and had incited other employees to join them. The respondent applied to the National Employment Council (NEC) for authority to dismiss the appellants on 1 June 1995. On 19 June 1995, the NEC's Appeals Subcommittee decided that the employees should be given a final written warning instead of dismissal. The respondent appealed this decision to the Labour Relations Tribunal. Five days before the Tribunal hearing on 27 May 1998, the respondent filed an application to lead oral evidence, acknowledging that the record did not contain satisfactory evidence of the go-slow or the appellants' involvement. However, the Chairman of the Tribunal discouraged the respondent from leading oral evidence. The Tribunal allowed the respondent's appeal and authorized dismissal of the appellants. The appellants then appealed to the Supreme Court.