"1(1) All those who are in this Act expressed to have the right of abode in the United Kingdom shall be free to live in, and to come and go into and from, the United Kingdom without let or hindrance except such as may be required under and in accordance with this Act to enable their right to be established or as may be otherwise lawfully imposed on any person. (2) Those not having that right may live, work and settle in the United Kingdom by permission and subject to such regulation and control of their entry into, stay in and departure from the United Kingdom as is imposed by this Act; ... (4) The rules laid down by the Secretary of State as to the practice to be followed in the administration of this Act for regulating the entry into and stay in the United Kingdom of persons not having the right of abode shall include provision for admitting (in such cases and subject to such restrictions as may be provided by the rules, and subject or not to conditions as to length of stay or otherwise) persons coming for the purpose of taking employment, or for purposes of study, or as visitors, or as dependants of persons lawfully in or entering the United Kingdom."
"3(1) Except as otherwise provided by or under this Act, where a person is not a British citizen - (a) he shall not enter the United Kingdom unless given leave to do so in accordance with the provisions of or made under this Act; (b) he may be given leave to enter the United Kingdom (or, when already there, leave to remain in the United Kingdom) either for a limited or for an indefinite period; (c) if he is given limited leave to enter or remain in the United Kingdom, it may be given subject to all or any of the following conditions, namely— (i) a condition restricting his employment or occupation in the United Kingdom (ii) a condition requiring him to maintain and accommodate himself, and any dependants of his, without recourse to public funds and (iii) a condition requiring him to register with the police. (2) The Secretary of State shall from time to time (and as soon as may be) lay before Parliament statements of the rules, or of any changes in the rules, laid down by him as to the practice to be followed in the administration of this Act for regulating the entry into and stay in the United Kingdom of persons required by this Act to have leave to enter, including any rules as to the period for which leave is to be given and the conditions to be attached in different circumstances; and section 1(4) above shall not be taken to require uniform provision to be made by the rules as regards admission of persons for a purpose or in a capacity specified in section 1(4) (and in particular, for this as well as other purposes of this Act, account may be taken of citizenship or nationality)."
"(3) In the case of a limited leave to enter or remain in the United Kingdom - (a) a person's leave may be varied, whether by restricting, enlarging or removing the limit on its duration, or by adding, varying or revoking conditions, but if the limit on its duration is removed, any conditions attached to the leave shall cease to apply; ..."
"29. In constitutional terms, it seems to me, the Immigration Rules are the product of a mandate set out ins.3(2) of the Immigration Act 1971 to secure Parliamentary approval of the principles according to which the Home Secretary intends for the time being to exercise the statutory and prerogative powers which govern admission to the United Kingdom. There is nothing in the Act which gives them the force of law, save in relation to appeals against their exercise. For the rest, their only statutory dimension is that they are made open to debate and negative resolution in Parliament."
"134. Indefinite leave to remain may be granted, on application, to a person admitted as a work permit holder provided: (i) he has spent a continuous period of 4 years in the United Kingdom in this capacity; and (ii) he has met the requirements of paragraph 131 ... throughout the 4 year period; and (iii) he is still required for the employment in question, as certified by his employer."
"131.
"128. The requirements to be met by a person coming to the United Kingdom to seek or take employment (unless he is otherwise eligible for admission for employment under these Rules or is eligible for admission as a seaman under contract to join a ship due to leave British waters) are that he ... (ii) is not of an age which puts him outside the limits for employment; and (iii) is capable of undertaking the employment specified in the work permit; and (iv) does not intend to take employment except as specified in his work permit; and (v) is able to maintain and accommodate himself and any dependants adequately without recourse to public funds."
"11. An overseas national who has spent a continuous period of 4 years in approved employment and is still required for the employment in question may apply for the removal of the conditions attached to their stay. ..."
"134. Indefinite leave to remain may be granted, on application, to a person admitted as a work permit holder provided: (i) he has spent a continuous period of 5 years in the United Kingdom in this capacity; and (ii) he has met the requirements of paragraph 128 (i) to (v) throughout the 5 year period; and (iii) he is still required for the employment in question, as certified by his employer."
"128. The requirements to be met by a person coming to the United Kingdom to seek or take employment (unless he is otherwise eligible for admission for employment under these Rules ...) are that he: (i) holds a valid Home Office work permit; and (ii) is not of an age which puts him outside the limits for employment; and (iii) is capable of undertaking the employment specified in the work permit; and (iv) does not intend to take up employment except as specified in his work permit; and (v) is able to maintain and accommodate himself and any dependants adequately without recourse to public funds; ..."
"... not speaking English is a barrier to integration and cohesion."
"(iv) he has sufficient knowledge of the English language and sufficient knowledge about life in the United Kingdom, unless he is under the age of 18 or aged 65 or over at the time he makes his application."
"33B. A person has sufficient knowledge of the English language and sufficient knowledge about life in the United Kingdom for the purpose of an application for indefinite leave to remain under these rules if - (a) he has attended a course which used teaching materials derived from the document entitled 'Citizenship Materials for ESOL Learners' ... and he has thereby attained a relevant accredited qualification; or (b) he has passed the test known as the 'Life in the UK Test' administered by an educational institution or other person approved for this purpose by the Secretary of State; ..."
"Apart from the provisions of the interpretation statutes, there is at common law a prima facie rule of construction that a statute should not be interpreted retrospectively so as to impair an existing right or obligation unless that result is unavoidable on the language used. A statute is retrospective if it takes away or impairs a vested right acquired under existing laws, or creates a new obligation, or imposes a new duty, or attaches a new disability, in regard to events already past."
"As it seems to me the first and third categories explained in the Coughlan case[2000] 2 WLR 622 are not hermetically sealed. The facts of the case, viewed always in their statutory context, will steer the court to a more or less intrusive quality of review. In some cases a change of tack by a public authority, though unfair from the applicant's stance, may involve questions of general policy affecting the public at large or a significant section of it (including interests not represented before the court); here the judges may well be in no position to adjudicate save at most on a bare Wednesbury basis, without themselves donning the garb of policy-maker, which they cannot wear. The local government finance cases, such as Reg v Secretary of State for the Environment, Ex parte Hammersmith and Fulham London Borough Council[1991] 1 AC 521 , exemplify this. As Wade and Forsyth observe (Administrative Law, 7th ed. (1994), p. 404): 'Ministers' decisions on important matters of policy are not on that account sacrosanct against the unreasonableness doctrine, though the court must take special care, for constitutional reasons, not to pass judgment on action which is essentially political.' In other cases the act or omission complained of may take place on a much smaller stage, with far fewer players. Here, with respect, lies the importance of the fact in the Coughlan case ... that few individuals were affected by the promise in question. The case's facts may be discrete and limited, having no implications for an innominate class of persons. There may be no wide-ranging issues of general policy, or none with multi-layered effects, upon whose merits the court is asked to embark. The court may be able to envisage clearly and with sufficient certainty what the full consequences will be of any order it makes. In such a case the court's condemnation of what is done as an abuse of power, justifiable (or rather, falling to be relieved of its character as abusive) only if an overriding public interest is shown of which the court is the judge, offers no offence to the claims of democratic power. There will of course be a multitude of cases falling within these extremes, or sharing the characteristics of one or other. The more the decision challenged lies in what may inelegantly be called the macro-political field, the less intrusive will be the court's supervision. More than this: in that field, true abuse of power is less likely to be found, since within it changes of policy, fuelled by broad conceptions of the public interest, may more readily be accepted as taking precedence over the interests of groups which enjoyed expectations generated by an earlier policy"
"1(1) A person discriminates against another in any circumstances relevant for the purposes of any provision of this Act if - (a) on racial grounds he treats that other less favourably than he treats or would treat other persons; or (b) he applies to that other a requirement or condition which he applies or would apply equally to persons not of the same racial group as that other but - (i) which is such that the proportion of persons of the same racial group as that other who can comply with it is considerably smaller than the proportion of persons not of that racial group who can comply with it; and (ii) which he cannot show to be justifiable irrespective of the colour, race, nationality or ethnic or national origins of the person to whom it is applied; and (iii) which is to the detriment of that other because he cannot comply with it. (1A) A person also discriminates against another if, in any circumstances relevant for the purposes of any provision referred to in subsection (1B), he applies to that other a provision, criterion or practice which he applies or would apply equally to persons not of the same race or ethnic or national origins as that other, but - (a) which puts or would put persons of the same race or ethnic or national origins as that other at a particular disadvantage when compared with other persons, (b) which puts that other at that disadvantage, and (c) which he cannot show to be a proportionate means of achieving a legitimate aim. (1B) The provisions mentioned in subsection (1A) are - ... (c) section 19B, so far as relating to - ... (iv) any form of social advantage; ... (1C) Where, by virtue of subsection (1A), a person discriminates against another, subsection (1)(b) does not apply to him. ... 3(1) In this Act, unless the context otherwise requires - 'racial grounds' means any of the following grounds, namely colour, race, nationality or ethnic or national origins; 'racial group' means a group of persons defined by reference to colour, race, nationality or ethnic or national origins, and references to a person's racial group refer to any racial group into which he falls. ... (4) A comparison of the case of a person of a particular racial group with that of a person not of that group under section 1(1) or (1A) must be such that the relevant circumstances in the one case are the same, or not materially different, in the other. 19B(1) It is unlawful for a public authority in carrying out any functions of the authority to do any act which constitutes discrimination. 19C ... (2) Section 19B does not apply to any act of, or relating to, making, confirming or approving any enactment or Order in Council or any instrument made by a Minister of the Crown under an enactment. ... (4) Section 19B does not apply to any act of, or relating to, imposing a requirement, or giving an express authorisation, of a kind mentioned in section 19D(3) in relation to the carrying out of immigration functions. (5) In this section - 'immigration functions' has the meaning given in section 19D; ... 19D(1) Section 19B does not make it unlawful for a relevant person to discriminate against another person on grounds of nationality or ethnic or national origins in carrying out immigration functions. ... (5) Those enactments are - (a) the Immigration Acts (within the meaning ofsection 44 of the Asylum and Immigration (Treatment of Claimants, etc) Act 2004 ... 78 ... 'social protection' and 'social advantage' have the same meaning as in Article 3 of Council Directive 2000/43/EC; ..."
"This Directive does not cover difference of treatment based on nationality and is without prejudice to provisions and conditions relating to the entry into and residence of third-country nationals and stateless persons on the territory of Member States, ..."
"In accordance with Articles 1 and 2 of the Protocol on the position of the United Kingdom and Ireland, annexed to the Treaty on European Union and to the Treaty establishing the European Community, and without prejudice to Article 4 of the said Protocol, these Member States are not participating in the adoption of this Directive and are not bound by or subject to its application."
"... any instrument made by a Minister of the Crown under an enactment."
"Article 8 1 Everyone has the right to respect for his private and family life, his home and his correspondence. 2 There shall be no interference by a public authority with the exercise of this right except such as is in accordance with the law and is necessary in a democratic society in the interests of national security, public safety or the economic well-being of the country, for the prevention of disorder or crime, for the protection of health or morals, or for the protection of the rights and freedoms of others."
"The enjoyment of the rights and freedoms set forth in this Convention shall be secured without discrimination on any ground such as sex, race, colour, language, religion, political or other opinion, national or social origin, association with a national minority, property, birth or other status."
"Every natural or legal person is entitled to the peaceful enjoyment of his possessions. No one shall be deprived of his possessions except in the public interest and subject to the conditions provided for by law and by the general principles of international law."