"Firstly, it may be relevant if there is evidence that employees have been led by an employer to believe that certain categories of conduct will be either overlooked, or at least will be not dealt with by the sanction of dismissal. Secondly, there may be cases in which evidence about decisions made in relation to other cases supports an inference that the purported reason stated by the employers is not the real or genuine reason for a dismissal. ... Thirdly, Mr Tabachnik concedes that evidence as to decisions made by an employer in truly parallel circumstances may be sufficient to support an argument, in a particular case, that it was not reasonable on the part of the employer to visit the particular employee's conduct with the penalty of dismissal and that some lesser penalty would have been appropriate in the circumstances.
"I consider that all industrial tribunals would be wise to heed the warning of Waterhouse J, giving the judgment of the Employment Appeal Tribunal in Hadjioannou v Coral Casinos Ltd "