“139 … In sympathy with the Court of Appeal on this point we consider that this constant focus upon the duality of interim and final injunctions is ultimately unhelpful as an analytical tool for solving the problem of injunctions against newcomers. In our view the injunction, in its operation upon newcomers, is typically neither interim nor final, at least in substance. Rather it is, against newcomers, what is now called a without notice (ie in the old jargon ex parte) injunction, that is an injunction which, at the time when it is ordered, operates against a person who has not been served in due time with the application so as to be able to oppose it, who may have had no notice (even informal) of the intended application to court for the grant of it, and who may not at that stage even be a defendant served with the proceedings in which the injunction is sought. This is so regardless of whether the injunction is in form interim or final.”
“142. Recognition that injunctions against newcomers are in substance always a type of without notice injunction, whether in form interim or final, is in our view the starting point in a reliable assessment of the question whether they should be made at all and, if so, by reference to what principles and subject to what safeguards. Viewed in that way they then need to be set against the established categories of injunction to see whether they fall into an existing legitimate class, or, if not, whether they display features by reference to which they may be regarded as a legitimate extension of the court’s practice.”
“167. These considerations lead us to the conclusion that, although the attempts thus far to justify them are in many respects unsatisfactory, there is no immoveable obstacle in the way of granting injunctions against newcomer Travellers, on an essentially without notice basis, regardless of whether in form interim or final, either in terms of jurisdiction or principle. But this by no means leads straight to the conclusion that they ought to be granted, either generally or on the facts of any particular case. They are only likely to be justified as a novel exercise of an equitable discretionary power if: (i) There is a compelling need, sufficiently demonstrated by the evidence, for the protection of civil rights (or, as the case may be, the enforcement of planning control, the prevention of anti-social behaviour, or such other statutory objective as may be relied upon) in the locality which is not adequately met by any other measures available to the applicant local authorities (including the making of byelaws). This is a condition which would need to be met on the particular facts about unlawful Traveller activity within the applicant local authority’s boundaries. (ii) There is procedural protection for the rights (including Convention rights) of the affected newcomers, sufficient to overcome the strong prima facie objection of subjecting them to a without notice injunction otherwise than as an emergency measure to hold the ring. This will need to include an obligation to take all reasonable steps to draw the application and any order made to the attention of all those likely to be affected by it (see paras 226-231 below); and the most generous provision for liberty (ie permission) to apply to have the injunction varied or set aside, and on terms that the grant of the injunction in the meantime does not foreclose any objection of law, practice, justice or convenience which the newcomer so applying might wish to raise. (iii) Applicant local authorities can be seen and trusted to comply with the most stringent form of disclosure duty on making an application, so as both to research for and then present to the court everything that might have been said by the targeted newcomers against the grant of injunctive relief. (iv) The injunctions are constrained by both territorial and temporal limitations so as to ensure, as far as practicable, that they neither outflank nor outlast the compelling circumstances relied upon. (v) It is, on the particular facts, just and convenient that such an injunction be granted. It might well not for example be just to grant an injunction restraining Travellers from using some sites as short-term transit camps if the applicant local authority has failed to exercise its power or, as the case may be, discharge its duty to provide authorised sites for that purpose within its boundaries.”