(1) For this Act, an individual has decision-making capacity in relation to voluntary assisted dying if they can—
(a) understand the facts that relate to a decision about accessing voluntary assisted dying; and
(b) understand the main choices available to them in relation to the decision; and
(c) weigh up the consequences of the main choices; and
(d) understand how the consequences affect them; and
(e) on the basis of paragraphs (a) to (d), make the decision; and
(f) communicate the decision in whatever way they can.
(2) An individual must be assumed to have decision-making capacity in relation to voluntary assisted dying unless it is established that they do not have decision-making capacity in relation to voluntary assisted dying.
(3) In deciding whether an individual has decision-making capacity in relation to voluntary assisted dying, the following must be taken into account:
(a) an individual's decision-making capacity is particular to the decision they are to make;
(b) an individual is capable of making a decision if they are capable of making the decision with adequate and appropriate support;
(c) an individual must not be treated as not having decision-making capacity unless all practicable steps to support them to make decisions have been taken;
(d) an individual must not be treated as not having decision-making capacity only because they—
(i) make an unwise decision; or
(ii) have impaired decision-making capacity under another Act, or in relation to another decision;
(e)
an individual who moves between having and not having
decision ‑ making capacity must, if practicable, be given the
opportunity to consider matters requiring a decision at a time when they have
decision-making capacity.