"14. As appears from the emphasised words above in Regulation 21(1)-(4), the 2006 Regulations have introduced a new hierarchy of levels of protection, based on criteria of increasing stringency: (1) A general criterion that removal may be justified 'on the grounds of public policy, public security or public health'; (2) A more specific criterion, applicable to those with permanent rights of residence, that they may not be removed 'except on serious grounds of public policy or public security'; (3) The most stringent criterion, applicable to a person 'who has resided in the United Kingdom for a continuous period of at least ten years prior to the relevant decision', who may not be removed except on 'imperative grounds of public security'. The Regulations provide no further guidance on the meaning of these expressions."
"21. Recital 23 is implemented in Articles 16 and 28.2; recital 24 is implemented in Article 28.3. What is significant in recital 24 is, first, the linkage with recital 23, signalled by "
"38. …Article 6 of Decision No 1/80 relates not only to the situation where a Turkish worker is in active employment but also to the situation where he is incapacitated for work, provided that his incapacity is only temporary, that is to say it does not affect his fitness to continue exercising his right to employment granted by that decision, albeit after a temporary break in his employment relationship… 39. Thus, while the right of residence as a corollary of a right to join the labour force and to be actually employed is not unlimited, the rights granted by Article 6(1) of Decision No 1/80 are necessarily lost only if the worker's inactive status is permanent. 40. In particular, while legal employment for an uninterrupted period of one, three, or four years respectively is in principle required in order for the rights provided for in the three indents of Article 6(1) to be established, the third indent of that provision implies the right for the worker concerned, who is already duly integrated into the labour force of the host Member State, to take a temporary break from work. Such a worker thus continues to be duly registered as belonging to the labour force of that State providing that he actually finds another job within a reasonable period, and therefore enjoys a right to reside there during that period. 41. It follows from the foregoing considerations that the temporary break in the period of active employment of a Turkish worker such as Mr Nazli while he is detained pending trial is not in itself capable of causing him to forfeit the rights which he derived directly from the third indent of Article 6(1) of Decision No 1/80 provided he finds a new job within a reasonable period after his release. 42. A person's temporary absence as a result of detention of that kind does not in any way call into question his subsequent participation in working life, as is moreover demonstrated by the main proceedings, where Mr Nazli looked for work and indeed found a steady job after his release..."
"(18) In order to be a genuine vehicle for integration into the society of the host Member State in which the Union citizen resides, the right of permanent residence, once obtained, should not be subject to any conditions."
"the person's length of residence in the United Kingdom, the person's social and cultural integration into the United Kingdom and the extent of the person's links with his country of origin."
"32. The following points should be taken into account: 1) Weight must be given to different tests within the new hierarchy. The words 'imperative grounds of public security' at the third level are clearly intended to embody a test which is both more stringent and narrower in scope than 'serious grounds of public policy or public security' at the second level. 2) 'Public security' is a familiar expression, but it does not appear to have been subject of judicial definition. I see no reason to equate it with 'national security'. That expression was discussed in Secretary of State v Rehman[2001] UKHL 47 , where Lord Slynn said: 'There must be some possibility of risk or danger to the security or well-being of the nation which the Secretary of State considers makes it desirable for the public good that the individual should be deported…' (paragraph 15) 'Public security' to my mind is a broader concept. The earlier version of the manual referred in this connection to – '… national security matters, or crimes that pose a particularly serious risk to the safety of the public or a section of the public'. The words 'risk to the safety of the public or a section of the public' seem to me reasonably consistent with the ordinary understanding of 'public security'. In the latest version of the manual, the utility of that description is reduced, because it is used for the second level, 'public policy or public security', without distinction between the two parts. 3) The word 'imperative', as a distinguishing feature of the third level, seems to me to connote a very high threshold. The earlier version of the manual treats it as equivalent to 'particularly serious'. In the latest version, the expression 'particularly serious risk' is used for the second level. The difference between the two levels, that is, between 'serious' and 'imperative', is said to be 'one of severity', but there is no indication why the severity of the offence in itself is enough to make removal 'imperative'. 4) The same thinking is reflected in the examples of offences given in the manual. Both levels require a serious offence linked to a propensity to re-offend. The second 'serious' level encompasses 'a violent offence carrying a maximum penalty of 10 years'; the third 'imperative' level requires not only a maximum penalty of 10 years but also an actual sentence of at least five years. It is not clear why the mere fact that a five year sentence has been imposed should make removal 'imperative'. 5) Neither version of the Manual seems to me to give adequate weight to the distinction between levels two and three, or to the force of the word 'imperative'. To my mind there is not simply a difference of degree, but a qualitative difference: in other words, level three requires, not simply a serious matter of public policy, but an actual risk to public security, so compelling that it justifies the exceptional course of removing someone who (in the language of the Preamble to the Directive) has become 'integrated' by 'many years' residence in the host state."
"Imperative grounds as laid down in sub-Sections 3 and 4 are considered to exist when an EU citizen is guilty of an act which is punishable by no less than one year of imprisonment, and where he or she, on grounds of the seriousness of the crime or of continued criminal activity, is considered a danger to public security, or where there are grounds for suspecting that he or she is seriously endangering the national security of Finland or another state."
"Compelling grounds of public safety can only apply if the person concerned has been unappealably sentenced to a prison term or a term of youth custody of at least five years for one or more intentionally committed offences or preventive detention has been ordered in connection with the most recent and appealable conviction, the security of the Federal Republic of Germany is affected or the person concerned poses a terrorist threat [Section 6(5) of the Gesetz über die allgemeine Freizügigkeit von Unionsbürgern (Act on the general freedom of movement for EU citizens)]."
"The existence of a previous criminal conviction can justify an expulsion only insofar as the circumstances which gave rise to that conviction are evidence of personal conduct constituting a present threat to the requirements of public policy."
"If an EEA national with permanent residence has resided in the UK for a continuous period of at least ten years prior to a decision to deport ( not including time spent in custody ), he may only be deported on imperative grounds of public security... Imperative grounds of public security will involve national security matters, or crimes that pose a particularly serious risk to the safety of the public or a section of the public. Imperative grounds in this respect might be where the person has been convicted of murder, a terrorism offence..., a drug trafficking offence..., a serious immigration offence..., or a serious sexual or violent offence carrying a maximum penalty of ten years or more... and been sentenced to five years or more..."