"(1) Subsection (2) applies if a person ('D') -- (a) has the care of a person ('P') who lacks, or whom D reasonably believes to lack, capacity, (b) is the donee of a lasting power of attorney, or an enduring power of attorney (within the meaning of Schedule 4), created by P, or (c) is a deputy appointed by the court for P. (2) D is guilty of an offence if he ill-treats or wilfully neglects P."
"What is 'a person without capacity'? A person 'lacks capacity' within the meaning of the Act of Parliament if he is unable to make decisions for himself because of some impairment or disturbance of the function of the mind or brain. The key phrase is, 'unable to make decisions for himself'. A diagnosis of dementia on its own is not enough. The impairment or disturbance may be permanent or temporary." 15. "
'Did he probably lack capacity?'
"2 People who lack capacity (1) For the purposes of this Act, a person lacks capacity in relation to a matter if at the material time he is unable to make a decision for himself in relation to the matter because of an impairment of, or a disturbance in the functioning of, the mind or brain."
"(2). It does not matter whether the impairment or disturbance is permanent or temporary. (3). A lack of capacity cannot be established merely by reference to -- (a) a person's age or appearance, or b) a condition of his, or an aspect of his behaviour, which might lead others to make unjustified assumptions about his capacity. (4). In proceedings under this Act or any other enactment, any question whether a person lacks capacity within the meaning of this Act must be decided on the balance of probabilities. 21. ...."
"(1) For the purposes of section 2, a person is unable to make a decision for himself if he is unable -- (a) to understand the information relevant to the decision, (b) to retain that information, (c) to use or weigh that information as part of the process of making the decision, or (d) to communicate his decision (whether by talking, using sign language or any other means). (2) A person is not to be regarded as unable to understand the information relevant to a decision if he is able to understand an explanation of it given to him in a way that is appropriate to his circumstances (using simple language, visual aids or any other means). (3) The fact that a person is able to retain the information relevant to a decision for a short period only does not prevent him from being regarded as able to make the decision. (4) The information relevant to a decision includes information about the reasonably foreseeable consequences of -- (a) deciding one way or another, or (b) failing to make the decision."