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Declaration of incompatibility meaning

What does Declaration of incompatibility mean?
In human rights litigation, a declaration of incompatibility is used when a higher court decides that a statutory provision cannot be read compatibly with the European Convention on Human Rights (ECHR). Under section 4 of the Human Rights Act 1998, specified senior courts (including the High Court, Court of Appeal, Court of Session, High Court of Justiciary and the Supreme Court) may make such a declaration in respect of primary legislation, or secondary legislation that cannot otherwise lawfully be quashed. It does not invalidate, suspend or disapply the legislation, determine liability, or award damages. Its practical effect is to signal to Parliament that the law conflicts with Convention rights; it is sought in judicial review or appeals after the section 3 interpretative duty has been exhausted and prompts amendment, including by remedial order under section 10 HRA. Usage is consistent across England and Wales, Scotland and Northern Ireland, though devolved legislation incompatible with the ECHR is outside competence and can be struck down under devolution statutes. In Ireland, the European Convention on Human Rights Act 2003 allows the High Court or Supreme Court to make a similar declaration regarding an Act of the Oireachtas, with notification to the Oireachtas.
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View the related News about Declaration of incompatibility

NEWS
UK Public Law weekly update—18 April 2024: case law Q1 2024, Brexit SIs, Procurement Act guidance, equality/human rights, data protection and subsidy control

In this issue: Public Law case law quarterly Brexit SIs Post-Brexit transition guidance Constitutional and administrative law Equality and human rights Information law Subsidy control and State aid Public procurement Management and strategic planning Daily and weekly news alerts New and updated content Dates for your diary Trackers New Q&A Useful information Public Law case law quarterly Public Law case law quarterly—Q1 2024 The Lexis+® Public Law team’s quarterly round-up presents key decisions and commentary from the last quarter. This issue features: a Court of Appeal ruling examining how redaction aligns with the duty of candour in judicial review; a Scottish judgment on when courts may refuse to give effect to a statutory provision; and a significant procurement case clarifying the threshold of ‘sufficiently serious’. See News Analysis: Public Law case law quarterly—Q1 2024... Brexit SIs Pressure Equipment (Safety) (Amendment) Regulations 2024 SI 2024/490: Made under...

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NEWS
MVL v The Leadmill: High Court upholds LTA 1954 section 30(1)(g) opposition; no A1P1 deprivation; fitting out counts as occupation; expected future income not a possession; goodwill unproved

MVL Properties (2017) Ltd v The Leadmill Ltd [2025] EWHC 349 (Ch) What are the practical implications of this case? Hugely significant consequences flow from this decision. The tenant accepted that, at the end of the current tenancy, the landlord could operate the same kind of business as the tenant; nevertheless it said the landlord was unlawfully depriving it of possession, contrary to Article 1 of Protocol 1 to the ECHR (A1P1), on the basis that the landlord was obtaining the tenant’s goodwill without adequate compensation. Had the High Court found a breach of A1P1 arising from the operation of ground (g) of the Landlord and Tenant Act 1954 in this claim, the court would then have been required to consider whether ground (g) itself could be read compatibly (in a new way) via section 3 of the Human Rights Act 1998 (HRA 1998) in this claim and, if that were not possible, whether to make a declaration of incompatibility under HRA 1998, s 4...

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NEWS
GMP officer challenges Police Act 1996 section 64 union ban in England and Wales; seeks HRA declaration of incompatibility under Article 11 ECHR; threatens judicial review

Lee Broadbent, a Greater Manchester Police officer who earlier won an employment tribunal against the Police Federation of England and Wales for age discrimination, has issued a formal legal notice to the Home Secretary calling for the repeal of section 64 of the Police Act 1996. That clause, which replaced the 1919 prohibition on police unions, obliges police officers to depend exclusively on the Police Federation, an organisation that is not a recognised union and prohibits industrial action. 'Police officers are the only group of public servants who are legally barred from joining a trade union', Broadbent said in a statement...

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View the related Practice Notes about Declaration of incompatibility

PRACTICE NOTES
Human Rights Act 1998: UK incorporation of the ECHR—Convention rights, public authority duties, interpretative obligation and horizontal effect, statements of compatibility, declarations of incompatibility, remedies, and reform

Convention rights The Human Rights Act 1998 (HRA 1998) took effect in October 2000 and is intended to give effect to the rights set out in the European Convention on Human Rights (ECHR) (the Convention rights). The ECHR is a binding international treaty reflecting the United Nations Universal Declaration of Human Rights 1948. The UK ratified the ECHR in 1951, but it became binding in UK law only with the introduction of the HRA 1998...

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PRACTICE NOTES
Unmarried cohabitants’ pension entitlements on death: UK tax rules, scheme conditions and ECHR challenges to nomination requirements and married cohabitant exclusions (Brewster, Elmes, Langford)

In this Practice Note, 'cohabitant' denotes an unmarried partner (excluding a civil partner) of a member. This Practice Note also references the European Convention on Human Rights (ECHR) and its relevance. The ECHR is an international treaty ratified by the UK in 1951. It became enforceable domestically through the Human Rights Act 1998, which gives legal effect to the rights guaranteed by the ECHR, giving effect to the rights contained within it. Rulings of the ECtHR are not binding; however, the Human Rights Act 1998 provides that UK courts must take into account any judgment, decision, declaration or advisory opinion of the ECtHR. As the ECHR is incorporated into UK law via the Human Rights Act 1998, neither Brexit nor the Retained EU Law (Revocation and Reform) Act 2023 alters the UK’s position in respect of the ECHR. For details on the pension entitlements of same-sex spouses and civil partners on a member’s death, see Practice Note: Pension rights of spouses and civil partners on member’s...

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PRACTICE NOTES
Human Rights Act 1998 and ECHR compatibility of legislation: section 19 statements, section 3 interpretation, section 4 declarations, and leading UK case law

Parliamentary statements of compatibility The Human Rights Act 1998 (HRA 1998) not only furnishes individuals with a remedy where their European Convention on Human Rights (ECHR) protections have been infringed, it also prompts government and Parliament to scrutinise, during law-making, whether proposed measures align with Convention rights. Under HRA 1998, s 19, a Minister of the Crown in each House must, before a Bill’s second reading, issue a statement confirming that the Bill complies with Convention rights (a section 19(1)(a) statement) or, alternatively, under section 19(1)(b), state that they cannot make such a confirmation, yet the government nonetheless asks Parliament to continue with the Bill. This process aims to ensure that human rights implications are addressed proactively, rather than remedied only after breach. It signals to both Houses the government’s assessment, while allowing Parliament to weigh incompatibility openly, if necessary. The form of the statement of compatibility The statement must be in writing, but no fixed method of publication is mandated. It must be published in whatever...

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