Section 69 introduces a definition of consent into Part 3 of the DPA 2018 to mirror the definition under the UK GDPR.
	Consent should only be used as the grounds for processing where it would be inappropriate to use one of the law enforcement purposes. For example, where a police officer wishes to take the fingerprints of a victim of a burglary, in order to eliminate them from any prints found at the crime scene, it would clearly be inappropriate to insist that the victim provide them.
	For consent to be a valid ground for processing it must be freely given, informed and an unambiguous indication of the data subject's wishes. A lack of response by the data subject, or the use of pre-ticked boxes, cannot be understood to indicate consent by the data subject. Where processing has multiple purposes, consent must be given for each of them.
	If the data subject is unable to withdraw their consent without suffering a negative consequence, it cannot be regarded as freely given and should not be used as the legal basis for processing.
	Where competent authorities rely upon consent to process personal data, they should be able to demonstrate that this has been freely given by the data subject in a clear, comprehensible and easily accessible manner. Pre-written declarations of consent by the controller must use clear and understandable language.
	When using consent, competent authorities must at least make the data subject aware of the identity of the competent authority, their purposes for processing and the types of processing that they carry out.
Part 5: Data Protection and Privacy Definitions in the UK GDPR and the 2018 Act Section 69: Consent to law enforcement processing