“(a) correct accidental errors in the decision or in a record of the decision; (b) amend reasons given for the decision; (c) set the decision aside”
“Was this requirement, which has the authority of Parliament behind it, mandatory or was it in some sense directory only? I have no doubt that it was mandatory, and that the failure to include this information was fatal to the certificate. … The validity of the certificate itself is in question, and if, as I believe, the requirement is mandatory, the certificate falls independently of whether the appellants were in fact misled. I find it impossible to accept that a requirement by an instrument of statutory force designed for the very purpose of compelling a public authority to inform the subject of his legal rights can be treated as simply regulatory if the requirement is not complied with. If I required authority for this proposition I would refer to Agricultural, Horticultural and Forestry Industry Training Board v. Kent , Rayner v. Stepney Corporation and Brayhead (Ascot) Ltd. v. Berkshire C.C . notwithstanding that it relied on Edwick v. Sunbury-on-Thames U.D.C . which was disapproved in James v. Secretary of State for Wales , which was decided on an argument irrelevant to the present appeal. However, I am content to assert a general principle to the effect that where Parliament prescribes that an authority with compulsory powers should inform the subject of his right to question those powers prima facie the requirement must be treated as mandatory.”
“28. In cases where (as in this case) the tribunal which decided the case consisted of a panel of three, any subsequent variation of the statement of reasons must reflect issues which were discussed by all three members of the tribunal, but which were then inadvertently not included in the statement written by the chair of the tribunal. If this is not the case, then the decision will not be that of the tribunal which heard the case, but in part that of just one of its members. It would follow that in such cases the chair in revising the statement of reasons should state explicitly (1) that the issue which is the subject of revision was expressly considered and discussed by all members of the tribunal, and (2) what is now added to the statement of reasons represents actual conclusions of the whole tribunal (rather than something which the chair thinks they would have concluded if they had considered the point in issue).”