This Practice Note covers the principles for handling personal data that form the core of the United Kingdom General Data Protection Regulation, Assimilated Regulation (EU) 2016/679 (UK GDPR) regime. For a general introduction to data protection law, including links to guidance on additional duties that arise under the UK GDPR, see the UK data protection law collection. In relation to the subject matter of this Practice Note, there is great similarity between the UK GDPR regime and the EU’s General Data Protection Regulation, Regulation (EU) 2016/679 (EU GDPR) regime. This Practice Note focuses on the position under the UK GDPR. For information about the background to the UK GDPR and its relationship with the EU GDPR, see Practice Note: The UK General Data Protection Regulation (UK GDPR)—Summary of key legislation, and for more details on similar principles in the EEA applying under the EU GDPR, see Practice Note: EU GDPR—data protection principles. Note that, in certain circumstances, both the UK GDPR and EU GDPR may