“56. First, subsections 11(5) and 12(1) set preconditions for the exercise of powers to deprive people of their liberty. In this country, powers to deprive people of their liberty are generally exercised by judges. It is exceptional for such powers to be exercisable by others. Where they are (i.e. where statute authorises administrative detention), the powers are to be construed "particularly strictly": see the extract from Bennion cited above, which cites the decision of the Privy Council in Tan Te Lam v Superintendent of Tai A Chau Detention Centre[1997] AC 97 , at 111 (Lord Browne-Wilkinson) and the decision of the Court of Appeal in R (B) v Secretary of State for the Home Department[2016] QB 789 , at [32] (Lord Dyson MR). The question of construction with which we are now concerned must, in our view, be seen through this lens.” 57. Second, we do not think it appropriate to take the compound phrases "personally seen" and "personally examined", as used in the 1959 and 1983 Acts, and split them up, asking first what "examined" or "seen" means and then what "personally" was intended to add. We agree with Mr Auburn that this is an artificial approach which fails to capture the true import of these compound phrases as they would have been understood in 1959 and 1983. 58. Third, the meaning of the phrases "personally seen" and "personally examined" might no doubt depend on who or what was being examined or seen. In this case, it is a patient. The concept employed by s. 12(1) is that of a medical examination, not merely a consultation. We have no doubt that Parliament in 1959 and 1983 would have understood the medical examination of a patient as necessarily involving the physical presence of the examining doctor. That is confirmed by the use of the word "visit" in other parts of the Act (in circumstances where the difference in language cannot have been intended to connote a difference in meaning). It is also confirmed by the fact that a psychiatric assessment may often depend on much more than simply listening to what the patient says. It may involve a multi-sensory assessment for the purposes summarised at para. 43 above. It may involve a physical examination in order to rule out differential diagnoses. It is no answer to say that it should be up to the examining doctor to decide when physical attendance is necessary, because without the cues that could only be picked up from a face-to-face assessment, the doctor might wrongly conclude that physical attendance was not required. 59. Fourth, although we accept that it may sometimes be appropriate to apply what has been referred to as an updating construction, we do not think that such a construction would be appropriate here. As Lord Wilberforce said in Royal College of Nursing case: "The courts should be less willing to extend expressed meanings if it is clear that the Act in question was designed to be restrictive or circumscribed in its operation rather than liberal or permissive". In this case, the statutory history unearthed by Mr Cornwell shows that the words we are construing were indeed intended to be restrictive and circumscribed. They were inserted to address a particular problem in which doctors had certified patients as liable to detention without physically attending on them. Whilst it is true that part of the problem was doctors delegating their functions to others, the remedy fixed upon by Parliament was to require the examination to be carried out personally by the person whose recommendation was being relied upon. That would have been understood then, and should be understood now, as connoting the physical presence of the doctor. 60. Fifth, the fact that the Code of Practice requires physical attendance and that the Secretary of State's Guidance makes clear that in person examinations are always preferable seem to us to show that, even today, medical examinations should ideally be carried out face-to-face. The fact that the 2020 Act made amendments to other parts of the MHA does not assist one way or the other in construing the provisions we are considering today, because the lack of amendments to subsections 11(5) and 12(1) could suggest either an assumption that those provisions already authorised interviews and examinations by video-conference or an assumption that they did not and an intention not to attenuate the requirement for physical attendance in this context. Either way, however, the 2020 amendments do show that – where Parliament considers that the pandemic necessitated amendments to the safeguards in the MHA – it is willing and able to make such amendments. The decision whether to allow the AMHP/nearest relative to see a patient and/or to allow a medical practitioner to examine a patient by video-conference (contrary to the common understanding of all concerned until the start of the current pandemic) will involve balancing two important public interests: the need to ensure that administrative deprivations of liberty are properly founded on objective evidence and the need to maintain the system of MHA detention given the exigencies of the pandemic. In our constitution, the weighing up of competing and incommensurable public interests of this sort is for Parliament, even in times of national emergency. 61. The sixth point is related. We bear firmly in mind that the construction which we are asked by the Trust and the Secretary of State to endorse will be applicable immediately and may remain in force for some time after the end of the current pandemic. The benefit of allowing any modifications to be made by Parliament is that, if they are considered necessary, a judgment might be made not to bring them into force; and Parliament could also consider whether they should be time-limited. Both these things were done in relation to the modifications for which the 2020 Act provided. These techniques offer a tailored way of addressing a time-limited problem. They confirm our view that it is Parliament, and not the courts, that can best address the problems to which the pandemic gives rise in this area.”
“The content may change but the concept remains the same. The meaning of the statutory language remains unaltered”
“it is just that this meaning is one which allows the relevant statutory language to have a changing application”