There's a sweeping exemption from the DPA for the purposes of "national security". Any minister can issue a certificate stating that a given activity is for the

There's a sweeping exemption from the DPA for the purposes of "national security". Any minister can issue a certificate stating that a given activity is for the purposes of national security and therefore exempt & these certificates can be issued retrospectively. It's all laid out in section 28 of the DPA: https://www.legislation.gov.uk/ukpga/1998/29/section/28 https://www.legislation.gov.uk/ukpga/1998/29/section/28