Terminally Ill Adults (End of Life) Bill

Debate between Lord Falconer of Thoroton and Baroness Cass

Committee stage
Friday 6th February 2026 Lords Chamber

[Baroness Cass (CB)]

I would never come at the noble and learned Lord, for whom I have the greatest respect. We de facto have to make changes to the Mental Capacity Act in the application of this, because, where a person does not have capacity, you make a best interests decision, but, clearly, we are not doing that in this case, so we are already deviating from how the Mental Capacity Act would work normally in relation to medical procedures. Where you think the medical procedure is the right thing, either the patient makes that decision or someone else would make it for them in their best interest, so we are already deviating.

Secondly, people will be trained specifically to carry out this work, so we have four years to train people to do this appropriately. I do not think slightly different training in this setting, compared to capacity in other situations, would be too burdensome for practitioners.

[Lord Falconer of Thoroton (Lab)]

On the Act not applying, the noble Baroness is absolutely right that best interests never come into it, because if the patient does not have capacity, that is the end of the matter and they cannot have an assisted death. It is worth pointing out that the Bill says:

“In this Act, references to a person having capacity are to be read in accordance with the Mental Capacity Act 2005”.


All this Bill is incorporating is the reference to capacity, not the second half of the Mental Capacity Act, which sets out what happens if you do not have capacity.

Terminally Ill Adults (End of Life) Bill

Debate between Lord Falconer of Thoroton and Baroness Cass

Committee stage
Friday 23rd January 2026 Lords Chamber

[Lord Falconer of Thoroton (Lab)]

That was the very thought going through my mind as I listened to the noble Lord, Lord Harper, and the noble Baroness, Lady Fox. They just made the same speeches again. On the point that he is making, the question of why is worth asking for two reasons: first, it might go to the question of coercion; and, secondly, it might throw up something that can be remedied, but, in the example I gave about loneliness, it may well be that meeting an organisation in those circumstances is simply not enough and does not change the person’s view. That is why I say that autonomy, rather than parsing the reasons, is the right course. In those circumstances, I invite the noble Baroness to withdraw her amendment.

[Baroness Cass (CB)]

May I just correct something? The noble and learned Lord said that I wanted it to be only things that doctors can measure. It is not so much about things that doctors can measure. I was saying that it is about whether it is plausible—a doctor should have good judgment of this—that the distress the person is experiencing is in any way related to the illness with which they have been diagnosed. There is a subtle but significant difference because that is what helps you distinguish between it being that or coercion.

[Lord Falconer of Thoroton (Lab)]

I will think about what the noble Baroness said. Perhaps it is my fault for not getting it. I will not write, but I will talk to her and listen to what she says.

Terminally Ill Adults (End of Life) Bill

Debate between Lord Falconer of Thoroton and Baroness Cass

Committee stage
Friday 5th December 2025 Lords Chamber

[Baroness Cass (CB)]

My Lords, as Sarah-Jayne Blakemore has been widely referred to, it might be useful to directly quote her. She said:

“Most of these age cutoffs have not been based on what we know about brain development, because they were decided way before we knew anything about how the brain develops during adolescence. So what I would say is that those kinds of decisions about age cutoffs”—


she is referring to the various age cut-offs for drinking, marriage and so on—

“should incorporate the new knowledge about brain development during adolescence. On the other hand, this is a question I’m asked often, I don’t think the neuroscience can provide an age for you. We can’t say, ‘Oh, the neuroscience shows that the brain becomes adult at age 18 or 24’ or whatever it might be. It’s much more complex than that”.

She goes on to describe how different brain regions develop and mature at different rates, and to talk about the individual differences in the speed of brain development:

“So what I would say is that what we know from neuroscience is the kind of age range, the very broad age range when the brain becomes mature and adult. And that’s much later than 18, between 20s and 30s for most people. So of course that cannot generate an age at which you become legally adult”.

That is what Sarah-Jayne Blakemore has said. On that basis, I support the suggestion from the noble Baroness, Lady Finlay, that, between the ages of 18 and 25, there should be enhanced and careful assessment, taking account of that perspective.

[Lord Falconer of Thoroton (Lab)]

I apologise for interrupting at this stage. This has been a very good debate, and it might be helpful if I indicate what my position in relation to this is. The thinking behind 18 is that that is the age at which you can make your own decisions about medical care. If you are suffering from a terminal illness, you can decide at 18 whether you want to withdraw treatment, for example, or what the treatment should be.

In answer to the noble Baroness, Lady Berridge, we were aware of the different views about when your brain and maturity develop, and what the noble Baroness, Lady Cass, said is absolutely correct—she read Sarah-Jayne Blakemore’s view—in that these age cut-offs that the law imposes generally are not based upon a close study of neurology; they are the law’s attempt to reflect maturity. I am indeed very aware of the fact that if you are 18, you may be more emotionally impulsive and more easily influenced than somebody of 25, 24 or 23. Equally, anybody who has had contact with people who are young and terminally ill will have found that some 18 year-olds are incredibly thoughtful and mature and some are not, for obvious reasons.

I am very influenced by the fact that I have been listening to people expressing real concern about this issue in this House. I still think 18 is probably the right age, but I am very influenced by what the noble Baronesses, Lady Finlay and Lady Cass, have said: that maybe the answer is some assurance that there is a more intense assessment for people aged between 18 and 25. The Bill says that you can have an assisted death only if you have

“a clear, settled and informed wish to end”

your life, and it is being done voluntarily. How can we be sure about those aged between 18 and 25? Two doctors and a panel have to make the decision, but some additional thing might be required.

We are slightly going around in circles again and repeating ourselves, so I suggest that I talk in particular to the noble Baronesses, Lady Cass and Lady Finlay, and that we come back on Report and see whether we need a more thorough assessment for people aged between 18 and 25—although I am not saying I am going to change the age of 18. That is broadly my position.