The rule of law: what is it, and why does it matter?

This is the first edition of this briefing. It has since been updated. Read the most up-to-date version and other briefings on the Constitution Unit’s website.

The rule of law is a fundamental principle underpinning the UK constitution. Its core principles include limits on state power, protection for fundamental rights and judicial independence. Lisa James and Jan van Zyl Smit argue that upholding the rule of law is a responsibility shared between politicians, officials and the public – with ministers and MPs having important roles to play.  

Background

The rule of law is frequently cited in political debate, and is a key topic monitored by those worried about democratic backsliding. But what is it, and why is it so important?

The rule of law is one of the fundamental principles underpinning constitutional democracies, and its importance is not seriously questioned in any modern democratic state. But like other constitutional principles, long-running debates exist about how it can most effectively be implemented.

This briefing explains the central concepts constituting the rule of law under three broad categories:

  1. Legality and legal certainty
  2. Legal equality and fundamental rights
  3. Judicial independence and access to justice

Why does the rule of law matter?

The rule of law prevents the abuse of state power, requires the law to be followed by all, and ensures that legal rights are fulfilled in practice. It also provides the means for various other core aspects of democracy to be safeguarded – for example, making certain that the laws made by parliament are enforced, and that fair conduct of elections can be guaranteed. More broadly, it underpins social functioning by providing fair and legitimate routes for disputes to be settled. And it supports stable economies and economic growth by upholding property rights, facilitating the elimination of corruption, and maintaining a business environment in which contracts are enforced, and international trade and investment can flourish. The rule of law alone is not sufficient to make a state democratic, but a state which does not observe it cannot be a healthy democracy.

As such, the rule of law has long been recognised as a fundamental part of the UK system. Many of its core aspects were established during the seventeenth century – particularly by the Bill of Rights 1689. Nineteenth-century scholar Albert Venn Dicey considered it, alongside parliamentary sovereignty, one of the ‘twin pillars’ of the constitution. More recently, Margaret Thatcher considered its observance central to Conservatism, arguing that ‘the institution of democracy alone is not enough. Liberty can only flourish under a rule of law’. And the 2001 Labour government recognised its importance as an existing principle in the Constitutional Reform Act 2005.

What does the rule of law cover?

Like other fundamental principles, the precise details of the rule of law are debated, but its central tenets are widely recognised. Lord (Tom) Bingham of Cornhill, a former Senior Law Lord, provided one well-known schema, on which the Venice Commission’s Rule of Law tools for assessing constitutional reforms are based. Another influential definition was given by then UN Secretary-General Kofi Annan, who defined the rule of law as:

…a principle of governance in which all persons, institutions and entities, public and private, including the State itself, are accountable to laws that are publicly promulgated, equally enforced and independently adjudicated, and which are consistent with international human rights norms and standards.

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What does the new Prime Minister mean for the constitution?

The Constitution Unit held an event in November at which three expert panellists discussed the potential constitutional impact of newly appointed Prime Minister Rishi Sunak, discussing the problems posed by concerns about ministerial standards, the government’s decision to proceed with several bills that pose worrying constitutional questions, and the future of the devolution settlement. Alice Hart and Hashmath Hassan summarise the contributions.

On the day that the UK Supreme Court ruled that the Scottish Parliament cannot legally hold another independence referendum without Westminster’s approval, the Constitution Unit held an event to discuss the potential constitutional impact of the new Prime Minister, Rishi Sunak. The event was chaired by Professor Meg Russell, Director of the Constitution Unit, and brought together three expert panellists: Jill Rutter (a Senior Research Fellow at UK in a Changing Europe and a Senior Fellow at the Institute for Government); Dr Ruth Fox (Director of the Hansard Society); and Professor Colm O’Cinneide (Professor of Constitutional and Human Rights Law at University College London). The summaries below are presented in order of the speakers’ contributions. 

Jill Rutter 

Jill Rutter discussed the need to repair the damage done to the perception of standards in public life during Boris Johnson’s time as Prime Minister. Johnson suffered the resignation of two Independent Advisers on Ministers’ Interests in as many years, tolerated misbehaviour from his MPs and was ‘fast and loose with the facts’ in parliament. Sunak’s commitment to the integrity agenda is unclear, Rutter stated. He has made assurances that he will appoint an Independent Adviser (unlike his predecessor, Liz Truss, who indicated that she did not need one) and has appointed a barrister to lead an independent inquiry into bullying allegations against Deputy Prime Minister Dominic Raab. However, questions remain about Sunak’s approach to his new Independent Adviser, such as whether he will provide the postholder with sufficient resources (as promised by Johnson to former Independent Adviser Lord (Christopher) Geidt) and whether he will make any effort to ensure their independence in terms of both the publication of reports and initiation of investigations without the approval of the Prime Minister.  

Other than these immediate actions, little is known about Sunak’s plans to restore integrity and trust in government. Clamping down on lobbying may be a good place to start, Rutter suggested: she noted that the Gordon Brown review of the constitution commissioned by the Labour Party is planning to propose limitations on MPs’ second jobs. She provided some examples of big ideas that Sunak could adopt, such as Labour’s proposal to establish an Integrity and Ethics Commission and the Australian government’s introduction of an anti-corruption commission. A key challenge for Sunak, Rutter suggested, is dealing with Johnson’s and Truss’ lists of nominations to the House of Lords – especially with regard to how they may affect trust in politics.  

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Monitor 82: achieving a new normal for the constitution?

Today the Unit published Monitor 82, containing reporting and analysis of recent constitutional events, covering the period from 1 August to the debates on the Counsellors of State Bill earlier this week. Even by the standard of recent years, the last four months has been a period of constitutional turbulence that has seen the ousting of two Prime Ministers and the death of a monarch who had sometimes seemed a constitutional constant. Meg Russell and Alan Renwick argue, in this piece, which is also the lead article for Monitor, that the new Prime Minister and monarch face significant challenges if they wish to rebuild stability and faith in the UK’s institutions.

Recent months have seen unprecedented turbulence in UK politics. This blogpost, like the current issue of Monitor, covers developments over just four months, yet reports on a change of monarch and two changes of Prime Minister, plus remarkable churn in ministerial positions, and much else.

As reported in the previous issue of Monitor, in early July Prime Minister Boris Johnson was forced to announce his departure following a wave of ministerial resignations. Concerns about propriety and integrity were central to his removal. Yet these topics played disappointingly little part in the leadership contest which unfolded over the summer, including in a series of hustings meetings for Conservative Party members between Rishi Sunak and Liz Truss. The primary focus of the contest was understandably the cost of living, with contention between the candidates over their economic approaches – Sunak warned against the dangers of Truss’s proposed unfunded tax cuts.

Truss won the contest, becoming Conservative Party leader on Monday 5 September, and she was appointed Prime Minister the following day by Queen Elizabeth. Cabinet positions began to be filled the day after that. But on 8 September, the day of the new government’s first major statement on the energy crisis, news emerged that the Queen was unwell. Her death was announced that evening. The end of a reign lasting over 70 years was a major moment for the United Kingdom’s national and constitutional self-understanding. The country entered a period of national mourning during which the funeral was held. Prince Charles immediately became King. Within days, he delivered a televised address, gave an oath at the Accession Council, addressed MPs and peers in Westminster Hall, and spoke at the Scottish Parliament, the Senedd, and Hillsborough Castle.

This delayed the new government’s activities, but a shock of a different kind occurred on 23 September, when Chancellor of the Exchequer Kwasi Kwarteng announced his so-called ‘mini budget’ to the House of Commons. Including ambitious tax cuts beyond those that Truss had pledged during the campaign, it resulted in grave instability for the financial markets. Ultimately Truss sacked Kwarteng on 14 October, but was forced to announce her own resignation just six days later. This triggered a further Conservative leadership contest, which saw Sunak appointed to the role of party leader and Prime Minister.

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The problem(s) of House of Lords appointments

Lords appointments are back in the news, with rumours of resignation honours from Boris Johnson, and even possibly Liz Truss. The current unregulated system of prime ministerial patronage causes multiple problems, and new Constitution Unit polling shows widespread public demand for change. Meg Russell reviews the problems and possible solutions, in the context of a bill on Lords appointments due for debate tomorrow. She argues that small-scale changes are now urgently required, and urges party leaders to embrace them – whatever their longer-term aspirations for Lords reform.

Recent weeks have seen revived controversies about appointments to the House of Lords. These include concerns about Boris Johnson’s long-rumoured resignation honours list, now joined by concerns that Liz Truss may want resignation honours of her own after just 49 days as Prime Minister. While the personalities may be different, controversies over Lords appointments are nothing new. The central overarching problem is the unregulated patronage power that rests with the Prime Minister. As this post highlights, a series of other problems follow: regarding the chamber’s size, its party balance, the quality of candidates appointed, the chamber’s reputation and widespread public dissatisfaction with the system.

An end to the Prime Minister’s unfettered appointment power is long overdue. Tomorrow a bill will be debated in the Lords aiming to tackle some of the problems, but as a backbench bill it is unlikely to succeed. Its contents nonetheless provide a useful (though incomplete) guide to the kind of important small-scale changes needed. Both main party leaders now need urgently to propose short-term packages of their own.

The problem of the size of the Lords

Much attention has focused in recent years on the spiralling size of the House of Lords. The current system places no limits whatsoever on the number of members who may be appointed to the chamber by the Prime Minister. Most – though not all – prime ministers have appointed unsustainably. Particularly given that peerages are for life, over-appointment drives the size of the chamber ever upwards. This is a historic problem, visible throughout the 20th century. The Blair government’s reform of 1999 brought the size of the chamber down (from around 1200 to just over 650). But since then it has risen again. Two reports from the Constitution Unit – in 2011 and 2015 – analysed this problem, calling for urgent action. In 2016 the Lord Speaker established a cross-party Committee on the Size of the House, which made recommendations the following year. Centrally these included restraint by the Prime Minister based on a ‘two-out-one-in’ principle – so that only one new peer would be appointed for every two who left, until the chamber stabilised at 600 members. These principles were endorsed by the Commons Public Administration and Constitutional Affairs Committee, and respected by Theresa May. But Boris Johnson ignored them. In 2021, the Lord Speaker’s Committee lamented how he had ‘undone progress’ achieved by his predecessor.

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Northern Ireland: dangers and opportunities for London

Northern Ireland is again governed by civil servants. Alan Whysall argues that London’s self-interest requires it to give Northern Ireland serious attention in coming months. But success may require more effort and time than is currently envisaged, and a return to the approach that led to the Belfast/Good Friday Agreement. Not making this commitment could have grave consequences for the entire Union, not just Northern Ireland.

This blog draws on the Unit’s report on Northern Ireland’s Political Future, published in May (hereafter referred to as the Report).

No government again

Northern Ireland has had no functioning Executive since the DUP’s withdrawal of its First Minister, in protest at the Northern Ireland Protocol, in February. The party declined to appoint a deputy First Minister following Assembly elections in May – when, for the first time, Sinn Féin emerged the largest party, entitled to the First Minister post (the DUP deny their refusal to appoint has anything to do with this, but Sinn Féin and others are sceptical). Government was carried on by ministers on a caretaker basis, unable to make controversial or crosscutting decisions, amid social and economic challenges often (as in the NHS) worse than in England. There is no budget and a £660 million overspend (exacerbated by the absence of an Executive). The DUP also blocked meetings of the Assembly.

On 28 October, with no Executive formed, the Secretary of State for Northern Ireland, Chris Heaton-Harris, came under a duty to hold further Assembly elections, before mid-January. By law, the caretaker ministers have now lost office, and civil servants are in charge.

Few wanted the elections, however, and either by his own decision or the Prime Minister’s, the Secretary of State announced emergency legislation on 9 November to put them off for 6, potentially 12 weeks. They could be avoided by the DUP agreeing to appoint an Executive by 8 December (19 January if extended). The legislation would also underpin civil servants’ powers, set a budget and enable the Secretary of State to reduce the pay of members of the Northern Ireland Assembly (MLAs).

Political prospects

The issue of the Northern Ireland Protocol remains intractable. The DUP refuses to return to devolution until it changes fundamentally; it appeared unimpressed by the threat to reduce MLA pay. The EU is willing to discuss implementing the Protocol more flexibly, but not to rewriting it.

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