"The High Court may by order (whether interlocutory or final) grant an injunction or appoint a receiver in all cases in which it appears to the court to be just and convenient to do so."
"(1) Where a local planning authority consider it necessary or expedient for any actual or apprehended breach of planning control to be restrained by injunction, they may apply to the court for an injunction, whether or not they have exercised or are proposing to exercise any of their other powers under this Part. (2) On an application under subsection (1) the court may grant such an injunction as the court thinks appropriate for the purpose of restraining the breach. (3) Rules of court may provide for such an injunction to be issued against a person whose identity is unknown. (4) In this section 'the court' means the High Court or the county court."
"… the carrying out of building, engineering, mining or other operations in, on, over or under land, or the making of any material change in the use of any buildings or other land."
"For the avoidance of doubt it is hereby declared that for the purposes of this section— (a) … (b) the deposit of refuse or waste materials on land involves a material change in its use, notwithstanding that the land is comprised in a site already used for that purpose, if— (i) the superficial area of the deposit is extended, or (ii) the height of the deposit is extended and exceeds the level of the land adjoining the site."
"… the power must be exercised with due regard to the purpose for which [it] was conferred: to restrain actual and threatened breaches of planning control. The power exists above all to permit abuses to be curbed and urgent solutions provided where these are called for."
"(1) Where a local authority consider it expedient for the promotion or protection of the interests of the inhabitants of their area— (a) they may prosecute or defend or appear in any legal proceedings and, in the case of civil proceedings, may institute them in their own name, and (b) they may, in their own name, make representations in the interests of the inhabitants at any public inquiry held by or on behalf of any Minister or public body under any enactment."
"The essential foundation for the exercise of the court's discretion to grant an injunction is not that the offender is deliberately and flagrantly flouting the law, but the need to draw the inference that the defendant's unlawful operations will continue unless and until effectively restrained by the law and that nothing short of an injunction will be effective to restrain them:see Wychavon District Council v Midland Enterprises (Special Events) Limited(1986) 86 LGR 83 at 89."
"If the court grants an injunction which prohibits conduct which is capable of causing nuisance or annoyance to a person it may, if subsection (3) applies, attach a power of arrest to any provision of the injunction."
"This subsection applies if the local authority applies to the court to attach the power of arrest and the court thinks that either— (a) the conduct mentioned in subsection (2) consists of or includes the use or threatened use of violence, or (b) there is a significant risk of harm to the person mentioned in that subsection."
"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 …; 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."
"There must be a strong probability that a tort or breach of planning control or other aspect of public law is to be committed and that this will cause real harm."
"The first is whether the local authority has complied with its obligations … to consider and provide lawful stopping places for Gypsies and Travellers … second is whether the authority has exhausted all reasonable alternatives … including whether it has engaged in a dialogue with the Gypsy and Traveller communities to try to find a way to accommodate their nomadic way of life by giving them time and assistance to find alternative or transit sites, or more permanent accommodation. The third is whether the authority has taken … steps to control or even prohibit unauthorised encampments and related activities by using the other measures and powers at its disposal."