Public policy, public security and public health
23. Decisions taken on grounds of public policy, public security or public health (“the relevant grounds”) must be taken in accordance with the following principles—
(a)the relevant grounds must not be invoked to secure economic ends;
(b)a decision taken on one or more of the relevant grounds must be based exclusively on the personal conduct of the individual in respect of whom the decision is taken;
(c)a person’s previous criminal convictions do not, in themselves, justify a decision on grounds of public policy or public security;
(d)a decision to refuse admission to the United Kingdom, or to refuse to grant the first residence permit or residence document, to a person on the grounds that he has a disease or disability may be justified only if the disease or disability is of a type specified in Schedule 1 to these Regulations;
(e)a disease or disability contracted after a person has been granted a first residence permit or first residence document does not justify a decision to refuse to renew the permit or document or a decision to remove him;
(f)a person is to be informed of the grounds of public policy, public security or public health upon which the decision taken in his case is based unless it would be contrary to the interests of national security to do so.