“… The concept of unfair dismissal … is quite different from the common law action for wrongful dismissal. The former in effect confers on the employee a quasi-property in his employment, whereas at common law, provided proper notice is given, an employee has no right to retain his employment or to be compensated if he is dismissed. Accordingly the essential subject matter … is the fact of dismissal. The question is: is it unfair, rather than is it wrong: see Norton Tool Co Ltd v Tewson[1972] ICR 501 , 504, where, sitting in the National Industrial Relations Court, Sir John Donaldson said: “In our judgment, the common law rules and authorities on wrongful dismissal are irrelevant. That cause of action is quite unaffected by theIndustrial Relations Act 1971 which has created an entirely new cause of action, namely, the ‘unfair industrial practice’ of unfair dismissal.” ”
“35. So far as s98(4) is concerned, it goes without saying that the Tribunal has to look at the reasonableness of the decision made by the employer and, in the context of a potentially mistaken belief as to whether the conduct complained of fell within the duties of the employee under his contract of employment, whether such mistaken belief was one which it was reasonable to hold.”
“… where the protection of employees’ statutory rights exactly coincides with common law principles, the latter may well provide an insight into how the former may be interpreted and applied but that is a far cry from saying that principles of contract law should dictate the scope of employees’ statutory rights. … where common law principles precisely reflect the statutorily protected rights of employees they may be prayed in aid to reinforce the protection of those rights.”