“15 Upper Tribunal's ‘judicial review’ jurisdiction (1) The Upper Tribunal has power, in cases arising under the law of England and Wales or under the law of Northern Ireland, to grant the following kinds of relief-- (a) a mandatory order; (b) a prohibiting order; (c) a quashing order; (d) a declaration; (e) an injunction.”
“(4) In deciding whether to grant relief under subsection (1)(a), (b) or (c), the Upper Tribunal must apply the principles that the High Court would apply in deciding whether to grant that relief on an application for judicial review.”
“17 Quashing orders under section 15(1): supplementary provision (1) If the Upper Tribunal makes a quashing order under section 15(1)(c) in respect of a decision, it may in addition— (a) remit the matter concerned to the court, tribunal or authority that made the decision, with a direction to reconsider the matter and reach a decision in accordance with the findings of the Upper Tribunal, or (b) substitute its own decision for the decision in question. (2) The power conferred by subsection (1)(b) is exercisable only if— (a) the decision in question was made by a court or tribunal, (b) the decision is quashed on the ground that there has been an error of law, and (c) without the error, there would have been only one decision that the court or tribunal could have reached.”