9 Use and retention of biometric information
Subject to regulations 10 and 11, the Secretary of State may use a record of a person’s fingerprints or a photograph of a person’s face provided in accordance with these Regulations —
(a) in connection with the exercise of a function by virtue of the Immigration Acts;
(b) in connection with the control of the United Kingdom’s borders;
(c) in connection with the exercise of a function related to nationality;
(d) in connection with the prevention, investigation, or prosecution of an offence;
(e) for a purpose which appears to the Secretary of State to be required in order to protect national security;
(f) in connection with identifying victims of an event or situation which has caused loss of human life or human illness or injury;
(g) for the purpose of ascertaining whether any person has failed to comply with the law or has gained, or sought to gain, a benefit or service, or has asserted an entitlement, to which he is not by law entitled.