"(6) Except in an emergency, in any case where it is proposed to enter any premises used for residential purposes, or to take heavy equipment on to any premises which are to be entered, any entry by virtue of this section shall only be effected— (a) after the expiration of at least seven days' notice of the proposed entry given to a person who appears to the authorised person in question to be in occupation of the premises in question, and (b) either— (i) with the consent of a person who is in occupation of those premises; or (ii) under the authority of a warrant by virtue of Schedule 18 to this Act." (i) with the consent of a person who is in occupation of those premises; or (ii) under the authority of a warrant by virtue of Schedule 18 to this Act."
“(7) Except in an emergency, where an authorised person proposes to enter any premises and— (a) entry has been refused and he apprehends on reasonable grounds that the use of force may be necessary to effect entry, or (b) he apprehends on reasonable grounds that entry is likely to be refused and that the use of force may be necessary to effect entry, any entry on to those premises by virtue of this section shall only be effected under the authority of a warrant by virtue of Schedule 18 to this Act.”
“(1) If it is shown to the satisfaction of a justice of the peace … on sworn information in writing— (a) that there are reasonable grounds for the exercise in relation to any premises of a relevant power; and (b) that one or more of the conditions specified in sub-paragraph (2) below is fulfilled in relation to those premises, the justice … may by warrant authorise an enforcing authority to designate a person who shall be authorised to exercise the power in relation to those premises, in accordance with the warrant and, if need be, by force.”
“(3) In a case where subsection (6) of section 108 of this Act applies, a justice of the peace … shall not issue a warrant under this Schedule by virtue only of being satisfied that the exercise of a power in relation to any premises has been refused, or that a refusal is reasonably apprehended, unless he is also satisfied that the notice required by that subsection has been given and that the period of that notice has expired.”
“The courts have the duty to supervise, I would say critically, even jealously, the legality of any purported exercise of these powers. They are the guardians of the citizens' right to privacy. But they must do this in the context of the times, i.e. of increasing Parliamentary intervention, and of the modern power of judicial review. In my respectful opinion appeals to 18th century precedents of arbitrary action by Secretaries of State and references to general warrants do nothing to throw light on the issue. Furthermore, while the courts may look critically at legislation which impairs the rights of citizens and should resolve any doubt in interpretation in their favour, it is no part of their duty, or power, to restrict or impede the working of legislation, even of unpopular legislation; to do so would be to weaken rather than to advance the democratic process.”
“What has to be disclosed upon the face of the search warrant depends upon the true construction of the statute. The construing court ought, no doubt, to remind itself, if reminder should be necessary, that entering a man's house or office, searching it and seizing his goods against his will are tortious acts against which he is entitled to the protection of the court unless the acts can be justified either at common law or under some statutory authority. So if the statutory words relied upon as authorising the acts are ambiguous or obscure, a construction should be placed upon them that is least restrictive of individual rights which would otherwise enjoy the protection of the common law. But judges in performing their constitutional function of expounding what words used by Parliament in legislation mean, must not be over-zealous to search for ambiguities or obscurities in words which on the face of them are plain, simply because the members of the court are out of sympathy with the policy to which the Act appears to give effect.”
“I freely acknowledge that this interpretation of section 18(1)(g) involves reading words into the paragraph. It has long been established that the role of the courts in construing legislation is not confined to resolving ambiguities in statutory language. The court must be able to correct obvious drafting errors. In suitable cases, in discharging its interpretative function the court will add words, or omit words or substitute words. Some notable instances are given in Professor Sir Rupert Cross's admirable opuscule, Statutory Interpretation, 3rd ed. (1995), pp. 93–105. He comments, at p. 103: ‘In omitting or inserting words the judge is not really engaged in a hypothetical reconstruction of the intentions of the drafter or the legislature, but is simply making as much sense as he can of the text of the statutory provision read in its appropriate context and within the limits of the judicial role.’” ‘In omitting or inserting words the judge is not really engaged in a hypothetical reconstruction of the intentions of the drafter or the legislature, but is simply making as much sense as he can of the text of the statutory provision read in its appropriate context and within the limits of the judicial role.’”
“This power is confined to plain cases of drafting mistakes. The courts are ever mindful that their constitutional role in this field is interpretative. They must abstain from any course which might have the appearance of judicial legislation. A statute is expressed in language approved and enacted by the legislature. So the courts exercise considerable caution before adding or omitting or substituting words. Before interpreting a statute in this way the court must be abundantly sure of three matters: (1) the intended purpose of the statute or provision in question; (2) that by inadvertence the draftsman and Parliament failed to give effect to that purpose in the provision in question; and (3) the substance of the provision Parliament would have made, although not necessarily the precise words Parliament would have used, had the error in the Bill been noticed. The third of these conditions is of crucial importance. Otherwise any attempt to determine the meaning of the enactment would cross the boundary between construction and legislation …”
“Schedule 18 to this Act shall have effect with respect to the powers of entry and related powers which are conferred by this section”
“‘relevant power’ means a power conferred by section 108 of this Act, including a power exercisable by virtue of a warrant under this Schedule”
“It is common ground that the execution of a search warrant is a serious interference with the liberty of the subject, and the statutory conditions for the issue must be conscientiously complied with. Mr. Jones referred me to the observation by Lord Widgery CJ in Williams v. Summerfield[1972] 2 QB 512 (at p. 518) that: Generations of justices have, or I would hope have, been brought up to recognise that the issue of a search warrant is a very serious interference with the liberty of the subject, and a step which would only be taken after the most mature careful consideration of all the facts of the case. That observation was repeated with approval by Bingham J. in R v. Crown Court at Lewes, ex p. Hill(1991) 93 Cr App R 60 (at p. 66).”