Refusal to issue or renew residence permit or residence document, and revocation of residence permit, residence document or EEA family permit
22.—(1) The Secretary of State may refuse to issue a residence permit or residence document (as the case may be) if the refusal is justified on grounds of public policy, public security or public health.
(2) The Secretary of State may revoke, or refuse to renew, a residence permit or residence document if—
(a)the revocation or refusal is justified on grounds of public policy, public security or public health; or
(b)the person to whom the residence permit or residence document was issued—
(i)is not, or has ceased to be, a qualified person;
(ii)is not, or has ceased to be, the family member of a qualified person.
(3) An immigration officer may, at the time of the arrival in the United Kingdom of a person who is not an EEA national, revoke that person’s residence document if he is not at that time the family member of a qualified person.
(4) An immigration officer may, at the time of a person’s arrival in the United Kingdom, revoke that person’s EEA family permit if—
(a)the revocation is justified on grounds of public policy, public security or public health; or
(b)the person is not at that time the family member of a qualified person.