These Regulations bring into force the remaining provisions of Part 4 of the Data Protection Act 2018 (c. 12) (“the 2018 Act”), which relates to data processing by the Intelligence Services, so far as they were not already in force.
Link: The Data Protection Act 2018 (Commencement No. 2) Regulations 2019
Source: Legislation .gov.uk
Source: PUBLISH TO RB