Z NHS Foundation Trust & Anor v Patricia & Ors
[2023] EWCOP 41
A person lacks capacity if at the material time they are unable to make a decision for themselves because of an impairment of, or a disturbance in the functioning of, the mind or brain and unable to use or weigh information relevant to the decision.
Mental Capacity Act 2005, ss. 2(1) and 3(1)(c)
The court is not obliged to identify a precise causal link between the inability to make a decision and various viable causes.
Pennine Acute Hospitals NHS Trust v TM [2021] EWCOP 8
The weighing process involves engaging in the decision-making process, seeing various parts of the argument, and relating them to one another.
PCT v P, AH and The Local Authority [2009] COPLR Con Vol 956
If a person lacks capacity to weigh relevant information due to a condition, they likely lack capacity to litigate that very issue.
An NHS Trust v P [2021] EWCOP 27
Beatrice lacks capacity to make decisions about care and treatment options in respect of her nutrition and hydration.
Her anorexia nervosa prevents her from weighing the information relevant to the decision, namely the life-threatening consequences of her actions. The condition causes delusions about her body weight, overriding any rational assessment of her situation.
Beatrice lacks capacity to litigate the application.
Her inability to weigh relevant information due to anorexia also impairs her ability to formulate and make submissions to the court regarding her capacity. The court rejected the idea that capacity to litigate could exist if the individual could give unrealistic instructions to lawyers.