With both new and existing commercial CCTV installations there is a requirement to comply with the data protection act. you can download a copy of the act HERE

You can contact the Data Protection Registrar through this web site

With new alarm installations we are required to comply with the new ACPO POLICY ON POLICE RESPONSE TO SECURITY SYSTEMS. This is intended to reduce  the number of false alarms the police attend. For further details you can view the official acpo statement