“15. The general legal principles to be applied when determining whether a person has capacity are set out in theMental Capacity Act 2005 and in theMental Capacity Act 2005 Code of Practice, supplemented by a series of reported cases. Those principles can be summarised as follows: (1) A person must be assumed to have capacity unless it is established that she lacks capacity: s.1(2). The burden of proof therefore lies on the party asserting that P does not have capacity. The standard of proof is the balance of probabilities: s.2(4). (2) 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 disturbance in, the functioning of the mind or brain: s.2(1) . Thus the test for capacity involves two stages. The first stage, sometimes called the "diagnostic test", is whether the person has such an impairment or disturbance. The second stage, sometimes known as the "functional test", is whether the impairment or disturbance renders the person unable to make the decision. S.3(1) provides that, for the purposes of s.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. (3) Capacity is both issue-specific and time-specific. A person may have capacity in respect of certain matters but not in relation to other matters. Equally, a person may have capacity at one time and not at another. The question is whether at the date on which the court is considering the question the person lacks capacity in question. (4) A person is not to be treated as unable to make a decision unless all practicable steps to help her to do so have been taken without success: s.1(3). The Code of Practice stresses that "it is important not to assess someone's understanding before they have been given relevant information about a decision" (para 4.16) and that "it is important to assess people when they are in the best state to make the decision, if possible" (para 4.46). (5) It is not necessary for the person to comprehend every detail of the issue. It is sufficient if they comprehend and weigh the salient details relevant to the decision (per Macur J, as she then was, in LBL v RYJ[2010] EWHC 2664 (Fam) . (6) A person is not to be treated as unable to make a decision merely because she makes an unwise decision: s.1(4) . (7) In assessing the question of capacity, the court must consider all the relevant evidence. Clearly, the opinion of an independently instructed expert will be likely to be of very considerable importance, but as Charles J observed in A County Council v KD and L[2005] EWHC 144 (Fam) [2005] 1 FLR 851 at paras 39 and 44, "it is important to remember (i) that the roles of the court and the expert are distinct and (ii) it is the court that is in the position to weigh the expert evidence against its findings on the other evidence… the judge must always remember that he or she is the person who makes the final decision". (8) The court must avoid the "protection imperative" — the danger that the court, that all professionals involved with treating and helping P, may feel drawn towards an outcome that is more protective of her and fail to carry out an assessment of capacity that is detached and objective: CC v KK[2012] EWHC 2136 (COP) .”
“106. Regarding a capacity to provide a statement and attend appeal proceedings in October 2020: Unless something substantially changes in her mental health presentation, in my opinion [the appellant] more likely than not will not have capacity to provide a statement for the hearing or be able to attend the proceedings, either in person or remotely, especially if her alleged perpetrator is present. Even though she understands the Court proceedings, due to her untreated severe PTSD, anxiety with panic attacks and ADHD she will more likely than now [sic], not be able to fully retain or weigh information.”
“74. It seems to be that, applying the guidance, conduct in a person’s private or personal life is in general not likely to be treated as a breach of CD5 but nevertheless can be so treated for good reason. The reason could be that the conduct, though personal or private, clearly is or is analogous to conduct which contravenes other provisions of the Code. 75. In the present case the relevant conduct involved acts and omissions in, or closely connected with, court proceedings. There is no doubt at all that conduct such as misleading a court, disobeying court orders and wasting or misusing the court’s time to the detriment of other users would be professional misconduct if committed in the course of a barrister’s professional practice. In my judgment it was open to the tribunal to rule that conduct of that kind was professional misconduct though committed in a personal capacity if, in fact it infringed a provision such as CD5 or r8.2.”
“In trying this question I believe I state the rule of the Court correctly when I say that, where a given matter becomes the subject of litigation in, and of adjudication by, a Court of competent jurisdiction, the Court requires the parties to that litigation to bring forward their whole case, and will not (except under special circumstances) permit the same parties to open the same subject of litigation in respect of matter which might have been brought forward as part of the subject in contest, but which was not brought forward, only because they have, from negligence, inadvertence, or even accident, omitted part of their case. The plea of res judicata applies, except in special cases, not only to points upon which the Court was actually required by the parties to form an opinion and pronounce a judgment, but to every point which properly belonged to the subject of litigation, and which the parties, exercising reasonable diligence, might have brought forward at the time.”