| R (Munir) v Secretary of State for the Home Department [2012] UKSC 32 |
Source of the Secretary of State's wide discretionary power under the Immigration Act 1971 to grant leave outside the Immigration Rules. |
The court relied on Munir to explain that the Secretary of State has broad statutory discretion to grant leave outside the Rules, subject to public law constraints. |
| R (Alvi) v Secretary of State for the Home Department [2012] UKSC 33 |
Where a code or policy imposes requirements that lead to refusal if not met, it is in substance a rule within s.3(2) of the 1971 Act. |
The court cited Alvi to distinguish between rules that must be laid before Parliament and policies outside the Rules; certain requirements must be in the Immigration Rules. |
| R (Lumba) v Secretary of State for the Home Department [2011] UKSC 12 |
The non-fettering principle: a policy may be lawful but decision-makers must be willing to depart from it where circumstances warrant. |
The court relied on Lumba to emphasise that the Respondent must bring discretion to bear in individual cases and not fetter it by rigid policy application. |
| R (West Berkshire DC) v Secretary of State for Communities and Local Government [2016] EWCA Civ 441 |
The non-fettering principle concerns substance (willingness to entertain exceptions), not merely policy wording. |
The court applied West Berkshire to show that unqualified wording does not necessarily indicate fettering if in reality exceptions are entertained. |
| R (KA) v Secretary of State for the Home Department [2022] EWHC 2473 |
Illustrative example where counsel conceded willingness to waive a procedural requirement, consistent with non-fettering. |
The court cited KA to support the proposition that procedural requirements may be waived and that the non-fettering principle allows consideration of exceptions. |
| R (AB) v Secretary of State for the Home Department [2018] EWCA Civ 383 |
Summary of non-fettering principle in immigration context and relation to leading authorities (British Oxygen; Ali (Iraq)). |
The court used AB to summarise the legal position: policies may be lawful but decision-makers must listen to claims outside them; the Rules coexist with residual discretion. |
| Ali (Iraq) v Secretary of State for the Home Department [2016] UKSC 60 |
The Immigration Rules are administrative practice laid before Parliament but are not themselves subject to the non-fettering principle in the usual sense; residual discretion remains. |
The court invoked Ali (Iraq) to explain the constitutional status of the Rules and that residual discretion outside the Rules is subject to non-fettering. |
| British Oxygen Co Ltd v Minister of Technology [1971] AC 610 |
Leading authority that those who exercise statutory discretion must not "shut their ears" to individual cases; must be willing to listen to exceptions. |
The court relied on British Oxygen as a classic statement of the non-fettering principle. |
| R (Sayaniya) v Upper Tribunal [2016] EWCA Civ 85 |
The Immigration Rules are not subject to non-fettering; mandatory Rules operate as intended, but residual discretion remains. |
The court cited Sayaniya to confirm the coexistence of mandatory Rules and a residual discretion subject to non-fettering. |
| Patel v Secretary of State for the Home Department [2013] UKSC 72 |
There is no "near miss" principle in immigration law in the Article 8 context; distinguishes Article 8 decisions from discretionary LOTR. |
The court accepted Patel's principle but explained it does not negate the duty to consider discretionary LOTR outside the Rules. |
| R (Plan B Earth) v Secretary of State for Transport [2020] EWCA Civ 214 |
Interpretation and application guidance for section 31(2A) of the Senior Courts Act 1981; modifies the old Simplex test. |
The court relied on Plan B Earth for guidance on the high threshold in s.31(2A) and the caution against second-guessing merits. |
| Simplex GE (Holdings) Ltd v Secretary of State for the Environment [1988] (cited) |
Earlier formulation that a claimant need not show that the authority would have reached a different conclusion, only that it would not "necessarily" have reached the same decision. |
The court described how the Simplex test was modified by the 2015 amendment to s.31, as explained in Plan B Earth. |
| R (Public and Commercial Services Union) v Minister for the Cabinet Office [2018] ICR 269 |
Observation that the threshold under the amended s.31 remains high. |
The court cited this authority to reinforce that s.31(2A) sets a high threshold before relief may be refused. |
| R (Bradbury) v Brecon Beacons National Park Authority [2025] EWCA Civ 489 |
Further guidance on s.31(2A): focus on the impact of the error on the decision-making process; caution against predicting merits. |
The court relied on Bradbury to stress that courts should not try to predict what a decision-maker would have done and that the focus is on process impact. |
| R (Greenfields (IOW) Ltd) v Isle of Wight Council [2025] EWCA Civ 488 |
Reiterates high threshold of s.31(2A); emphasises need for clear evidence of decision-making process where s.31(2A) is relied upon. |
The court cited Greenfields for the proposition that the public authority should provide clear witness evidence if relying on s.31(2A). |
| Ladd v Marshall [1954] 1 WLR 1489 |
Criteria for admitting fresh evidence on appeal. |
The court referenced Ladd v Marshall in considering whether late-produced Home Office documents should be admitted on appeal. |