Tissa Attanayake vs. United National Party and Others – sllr 2015 volume 1 page 319

In the case between Tissa Attanayake (Plaintiff) and the United National Party (UNP) with associated respondents (Defendant), the primary legal issue concerned whether the expulsion of the plaintiff from the UNP conformed to the principles of natural justice, particularly whether procedural fairness and a fair hearing were observed in accordance with Article 99(13)(a) of the Constitution. It was held that the expulsion was procedurally invalid, as the plaintiff was denied an opportunity to be heard and was treated unequally in comparison to other party members. The decision reaffirmed the core rule of audi alteram partem and relied on established constitutional precedents, emphasizing that strict adherence to procedural fairness is required in disciplinary actions affecting fundamental rig