Part 3: Review of the operation of Parts 1 and 2 etc Section 63: Reviews: general
Section 63 creates the requirement for the role of ‘independent reviewer’ for state threats legislation. Subsection (1) outlines that the role of the reviewer is to review the operation of Part 1, which covers offences and powers of investigation, and Part 2, the Prevention and Investigation Measures. They will also review the operation of Schedule 3 to the Counter-Terrorism and Border Security Act 2019, which covers border security powers in relation to hostile state activity. The review of Schedule 3 does not cover the functions exercised by the Investigatory Powers Commissioner under that Schedule.
	Subsection (2) and (3) provide that the independent reviewer must carry out an annual review which must be completed as soon as reasonably practicable after the calendar year to which it relates.
	Under subsection (2)(b) the reviewer can also carry out other reviews as they consider appropriate and, under subsection (4), must inform the Secretary of State of any extra, discretionary reviews they wish to carry out in that year.
	Under subsection (5), a report on each review must be sent to the Secretary of State as soon as reasonably practicable after its completion.
	Subsection (6) requires the Secretary of State to lay the report before Parliament along with a statement as to whether any material has been removed. Subsection (7) outlines the specific conditions under which the Secretary of State may remove material after consulting with the independent reviewer.