Part 6: Bulk warrants Chapter 2: Bulk acquisition warrants Section 167: Cancellation of warrants
This section sets out the circumstances under which a bulk acquisition warrant must be cancelled.
	Where the Secretary of State or a senior official decides the warrant is no longer necessary or proportionate, or that the examination of data collected under the warrant is no longer necessary for any of the operational purposes specified on the warrant, he or she must cancel the warrant.
	The Secretary of State or a senior official may also cancel a warrant at any time.