The assisted dying bill: a constitutional clash over Lords' powers
The assisted dying bill is back on the political agenda, and with it comes a familiar question: should the House of Lords be able to block legislation that has the backing of a majority of MPs? It's a debate that cuts to the heart of how Britain's unwritten constitution works, and the outcome could shape not just the future of end-of-life law but the balance of power between the two chambers of Parliament.
Several news outlets have reported renewed efforts to bring forward a bill on assisted dying, and a growing chorus of voices arguing that the Lords should not be allowed to frustrate the will of the elected House. This is not a new argument, but it has gained fresh urgency as campaigners and some MPs push for a vote on assisted dying for the first time in years. Yet the path is strewn with obstacles, both procedural and political. Supporters face at least four significant challenges if they want to revive the legislation, and there are those who think the whole enterprise is a mistake.
So what exactly is going on, and where does this leave the campaign for assisted dying? Let's break it down.
What is the assisted dying bill and why does it keep coming back?
The term 'assisted dying' usually refers to a proposed law that would allow terminally ill, mentally competent adults to request medical help to end their own lives. It's a deeply personal and emotive issue, one that cuts across party lines and sparks fierce debate about ethics, religion, and individual autonomy. In the UK, the current law under the Suicide Act 1961 makes it a criminal offence to encourage or assist a suicide, punishable by up to 14 years in prison. The bill in question is typically a private member's bill, meaning it is introduced by a backbench MP or a peer, not by the government.
Over the past two decades, there have been several attempts to change the law. In 2015, a bill introduced by Labour MP Rob Marris was defeated in the House of Commons by 330 votes to 118. In 2021, a similar bill in the House of Lords, sponsored by crossbencher Lord Falconer of Thoroton, progressed to committee stage but then stalled. More recently, in 2023, Labour MP Kim Leadbeater introduced a Ten Minute Rule Bill that called for a debate on assisted dying but did not proceed further. Each time, the issue surfaces, gains momentum, and then fades, often because parliamentary time runs out or because the House of Lords raises objections.
What's different now? The headlines suggest that some MPs and campaigners believe the time is right to try again, partly because public opinion has shifted. Polls consistently show that a majority of the British public supports assisted dying, with numbers often above 70%. But public opinion is not the same as parliamentary arithmetic, and the House of Lords remains a formidable roadblock.
The House of Lords' blocking power: a democratic anomaly?
The core of the argument is simple: the House of Lords is an unelected chamber. Its members are appointed, hereditary, or sit because they hold senior roles in the Church of England or the judiciary. So when it blocks legislation that has been passed by the elected House of Commons, it raises a fundamental question about democratic legitimacy. This is not just a theoretical point. The Salisbury Convention, which dates back to 1945, says the Lords should not block the passage of legislation that was promised in the governing party's election manifesto. But for non-manifesto bills, like private members' bills on assisted dying, the convention does not apply. That leaves the Lords free to vote them down or amend them to the point of unworkability.
Critics argue this is an unacceptable veto for an unelected body, especially on a matter of such profound personal importance. They point to examples where the Lords have repeatedly stalled bills on assisted dying, most notably in 2021 when peers voted to block a bill from progressing to committee stage. Supporters of the Lords' role counter that the chamber provides a vital check on the executive and ensures that complex, moral issues are given careful scrutiny. They note that the Lords often includes experts in medicine, law, and ethics who can improve legislation. But the question remains: should a handful of appointed peers be able to overrule the will of the Commons and, by extension, the electorate?
This constitutional tug-of-war is not limited to assisted dying. The Lords have been criticised for blocking measures on Brexit, welfare reform, and even plain packaging for cigarettes. But assisted dying is a particularly charged example because it involves life and death. The argument that the Lords should not block a bill backed by MPs is therefore both a procedural point and a moral one.
Four challenges supporters face in reviving the bill
According to analysis from The Conversation, supporters of the assisted dying bill face at least four significant hurdles if they want to bring it back and get it passed. Let's walk through them.
1. Parliamentary time and government support
Private members' bills are notoriously difficult to pass. They have limited time for debate and are often 'talked out' by opponents who filibuster until the session ends. Without strong backing from the government, the bill is unlikely to get enough parliamentary time to progress through all its stages. The current government has not shown any enthusiasm for changing the law on assisted dying.
2. Opposition in the House of Lords
Even if the bill passes the Commons, the Lords is a hostile environment. Many peers, particularly those with religious backgrounds or medical expertise, have deep reservations about assisted dying. They have used their powers to delay and amend previous bills. Overcoming this will require either a change of heart among peers or a constitutional reform that curtails their ability to block such legislation.
3. The need for a carefully drafted bill
Assisted dying bills are legally complex. They must define 'terminal illness', 'mental competence', and 'voluntary request' in ways that are both workable and resistant to abuse. Past bills have been criticised for being too vague or too restrictive. Getting the drafting right is a huge challenge, and any flaws will be used by opponents to argue the bill is unsafe.
4. Political will and coalition building
Assisted dying is a conscience issue, meaning MPs are not whipped to vote a certain way. That makes it harder to predict outcomes. Building a cross-party coalition of supporters requires careful lobbying and the ability to overcome moral objections. The emotional nature of the debate can make rational argument difficult, and the media often focuses on the most polarising voices. Without a sustained campaign that wins over wavering MPs, the bill is unlikely to succeed.
Why some argue bringing back the bill is a huge mistake
Not everyone thinks reviving the assisted dying bill is a good idea. In an opinion piece published by Politics Home, a writer argued that bringing back the bill is a huge mistake. The reasoning goes like this: the previous attempts have failed soundly, and the political landscape has not changed enough to suggest a different outcome. Pushing the issue again now will only consume parliamentary time that could be spent on other pressing matters, such as the cost of living crisis or NHS backlogs. Worse, it could reopen deep divisions within parties at a time when unity is needed.
There is also a strategic argument. Some campaigners for assisted dying worry that a premature or poorly prepared bill could set back the cause for years. If a bill is defeated again, it sends a signal that Parliament is not ready for change, making it harder to argue for a vote in future. And if the bill passes but contains weak safeguards, it could lead to unintended consequences that damage the broader movement.
This is a genuine tension within the pro-choice camp. On one side are those who feel the moral imperative to act now, while there is still public support. On the other are the pragmatists who want to build a stronger case and wait for a more favourable parliamentary moment. That debate will continue, and it is not clear which side will win.
Historical context: how the Lords have handled conscience issues
The House of Lords has a long history of taking a more conservative line on social issues than the Commons. On homosexuality, abortion, and the death penalty, peers have often been slow to change, sometimes blocking reform for years. The assisted dying debate fits this pattern. In 1965, the Lords voted to retain the death penalty despite the Commons having abolished it for most offences (the full abolition came later). More recently, in 2013, the Lords forced the government to amend the Marriage (Same Sex Couples) Act to include protections for religious organisations, a move that delayed the bill.
What's interesting is that the Lords' role on these issues has shifted over time. In the past, they were seen as a brake on hasty or illiberal legislation. Today, some argue they are a brake on progressive reform. The unelected nature of the chamber makes this tension particularly acute. There have been multiple calls for Lords reform, but successive governments have kicked the can down the road. The assisted dying bill may force the issue to the top of the agenda again.
Closing thoughts: where does this leave the assisted dying campaign?
The assisted dying bill is at a crossroads. Supporters have momentum, but they face a hostile Lords and a crowded parliamentary calendar. The argument that the Lords should not block legislation backed by MPs is compelling, but it is unlikely to succeed without a broader shift in how the second chamber operates. And that is a massive political undertaking that goes well beyond assisted dying.
For now, the most likely outcome is another attempt that fails, either due to lack of time or opposition in the Lords. But that does not mean the campaign is pointless. Each debate shifts public opinion a little more, and each defeat clarifies the obstacles. At some point, the tide may turn. Whether it turns soon enough for those who are terminally ill now is a heartbreaking question that no amount of constitutional analysis can answer.
The debate over the assisted dying bill is not just about one piece of legislation. It is about how we make laws on matters of life and death, who gets to decide, and whether our parliamentary system is fit for purpose in the 21st century. Those are questions worth asking, even if the answers are not yet clear.
