“The BOI and the CEA were required to perform these duties and obligations vested in them by the provisions of Part IV C of the Act and the National Environmental (Procedure for approval of projects) Regulations No. 1 of 1993 keeping in mind that doing so was not only their statutory and regulatory duty but also that these powers have been conferred on them in the public trust. This Court has, in several decisions such as WIJEBANDA vs. CONSERVATOR GENERAL OF FORESTS, SUGATHAPALA MENDIS vs. CHANDRIKA KUMARATUNGE [2008 2 SLR 339], ENVIRONMENTAL FOUNDATION LTD vs. MAHAWELI AUTHORITY OF SRI LANKA and PREMALAL PERERA vs. TISSA KARALIYADDE [SC FR 891/2009 decided on 31st March 2016], recognised and given effect to the public trust doctrine.”