Hon. Attorney General vs Dr. Upathissa Atapattu Bandaranayke Wasala Mudiyanse Ralahamilage Shirani Anshumala Bandaranayake – SC APPEAL NO. 67/2013-2014

In the case between the Attorney General (acting as Petitioner‑Appellant) and the Chief Justice under impeachment (Petitioner‑Respondent), with various respondents relating to the parliamentary impeachment process, the Supreme Court considered whether the Court of Appeal possessed jurisdiction under Article 140 of the Constitution to review and quash the proceedings or reports of a Parliamentary Select Committee concerning impeachment. It was held that such parliamentary proceedings, when arising from the execution of constitutional powers such as impeachment, are shielded from judicial review by way of prerogative writs, owing to constitutional provisions on the separation of powers and the privileges afforded to Parliament. This determination reaffirmed the principle that judicial review