Your CCTV or ANPR system may need to be registered by notifying the Information Commissioners Office - telephone 0303 123 1113. The notification period is one year and a fee is chargeable.
CCTV warning signs must be displayed to show that CCTV cameras are recording, stating the purpose of the system and including details of who manages the system and how to contact them.
For more information please refer to The Information Commissioners Office at ico.org.uk.
And specifically for CCTV Systems refer to the CCTV Checklist.