“a. There is no strict rule of issue estoppel binding on the court. b. Nevertheless, the court should give effect loyally to a previous judicial finding or decision that is relevant to the determinations it has to make, and should avoid re-opening earlier findings that cannot be undermined by subsequent changes in circumstances. An example would be a finding that P lacked capacity at a particular point in time. Such findings, if not successfully appealed, should generally only be re-opened if new evidence emerges that might reasonably have led the earlier court to reach a different conclusion. c. Where there has been no material change of circumstances subsequent to a previous judgment, no new evidence that calls for a re-opening of the earlier findings, and the earlier evaluation of best interests clearly covers the decision that the new court is being asked to consider, appropriate case management might involve the court summarily determining the new application. d. Determinations of capacity and best interests are sensitive to specific decisions and circumstances, therefore the court will exercise appropriate restraint before making any summary determination. e. If the decision or circumstances that the new court is being asked to consider are not clearly covered by the earlier judgment, or there has been a material change of circumstances or new evidence that calls into question the previous findings, the court should manage the case in a way that is proportionate having regard to the earlier judicial findings and decisions. f. In dealing with the new application proportionately, the court's focus will be on what has changed since the previous ruling, and any new evidence. It should usually avoid re-hearing evidence that has already been given and scrutinised in the earlier proceedings.”
"The doctors owe the child a duty to care for it in accordance with good medical practice recognised as appropriate by a competent body of professional opinion (see Bolam v Friern Hospital Management Committee[1957] 2 All ER 118 ,[1957] 1 WLR 582 ). This duty is, however, subject to the qualification that, if time permits, they must obtain the consent of the parents before undertaking serious invasive treatment. The parents owe the child a duty to give or to withhold consent in the best interests of the child and without regard to their own interests. The court when exercising the parens patriae jurisdiction takes over the rights and duties of the parents, although this is not to say that the parents will be excluded from the decision-making process. Nevertheless in the end the responsibility for the decision whether to give or to withhold consent is that of the court alone. It follows from this that a child who is a ward of court should be treated medically in exactly the same way as one who is not, the only difference being that the doctors will be looking to the court rather than to the parents for any necessary consents. No one can dictate the treatment to be given to the child, neither court, parents nor doctors. There are checks and balances. The doctors can recommend treatment A in preference to treatment B. They can also refuse to adopt treatment C on the grounds that it is medically contra-indicated or for some other reason is a treatment which they could not conscientiously administer. The court or parents for their part can refuse to consent to treatment A or B or both, but cannot insist upon treatment C. The inevitable and desirable result is that choice of treatment is in some measure a joint decision of the doctors and the court or parents."
“It is, however, clear that the practical jurisdiction of the court is wider than that of the parents”
"As the authorities to which I have already made reference underline again and again, the sole principle is that the best interests of the child must prevail and that must apply even to cases where parents, for the best of motives, hold on to some alternative view."
“There is no doubt in my mind that her presentation is on a rapid downward trajectory. She is now at the very limits of what is medically available for her”