precedents have developed the doctrine of legitimate expectation in Bangladesh since 1987. The criteria of the doctrine was restated in Golam Mustafa v. Bangladesh, which is described in the following. If there is a promise by the authority expressed either by their representations or conducts. The decision of the authority was arbitrary or unreasonable within the Wednesbury principle. There was a failure on the part of the concerned authority to act fairly in taking the decision. The expectation to be crystallized into a legitimate one, it must be based on clear facts and circumstances leading to a definite expectation and not a mere anticipation or a wish or hope and also must be reasonable in the circumstances. Judicial review may allow such a legitimate expectation and quash the impugned decision even in the absence of a strict legal right unless there is an overriding public interest to defeat such an expectation. European Patent Office The European Patent Office (EPO) also applies the "principle of the protection of legitimate expectations", in that "measures taken by the EPO should not violate the reasonable expectations of parties to [the] proceedings" before the EPO. References Cases Hong Kong . Singapore Re Siah Mooi Guat [1988] 2 S.L.R.(R.) [Singapore Law Reports (Reissue)] 165, High Court (Singapore). Abdul Nasir bin Amer Hamsah v. Public Prosecutor [1997] SGCA 38, [1997] 2 S.L.R.(R.) 842, Court of Appeal (Singapore), archived from the original on 24 December 2011. . UDL Marine (Singapore) Pte. Ltd. v. Jurong Town Corp. [2011] 3 S.L.R. 94, H.C. (Singapore). Chiu Teng @ Kallang Pte. Ltd. v. Singapore Land Authority (2013) [2014] 1 S.L.R. 1047, H.C. (Singapore). United Kingdom . . ("GCHQ case"). . R. v. Inland Revenue Commissioners, ex parte M.F.K. Underwriting Agents Ltd. (1989) [1990] 1 W.L.R. 1545, High Court (Queen's Bench) (England & Wales). R. v Ministry of Agriculture, Fisheries and Food, ex parte Hamble (Off-shore) Fisheries Ltd. [1995] 2 All E.R. 714, C.A. (England & Wales). . . . . . R. (London Borough of Hillingdon) v. Secretary of State for Education and Skills, 2007. Other works . . . . Notes Further reading Articles . . . . . . . . . Books . . . . . . . . Administrative law