the unlawful interception of communications, and

the unlawful obtaining of communications data.

can be found, in particular, in the regimes provided for by Parts 2 to 7 and in the oversight arrangements in Part 8, and

Part 2 and Chapter 1 of Part 6 set out circumstances (including under a warrant) in which the interception of communications is lawful and make further provision about the interception of communications and the treatment of material obtained in connection with it,

Part 3 and Chapter 2 of Part 6 set out circumstances in which the obtaining of communications data is lawful in pursuance of an authorisation or under a warrant and make further provision about the obtaining and treatment of such data,

Part 4 makes provision for the retention of certain communications data in pursuance of a notice,

Part 5 and Chapter 3 of Part 6 deal with equipment interference warrants, and

Part 7 deals with bulk personal dataset warrants.

Part 8 deals with oversight arrangements for regimes in this Act and elsewhere, and

Part 9 contains miscellaneous and general provisions including amendments to sections 3 and 5 of the Intelligence Services Act 1994 and provisions about national security and combined warrants and authorisations.

to issue, renew or cancel a warrant under Part 2, 5, 6 or 7,

to modify such a warrant,

to approve a decision to issue, renew or modify such a warrant,

to grant, approve or cancel an authorisation under Part 3,

to give a notice in pursuance of such an authorisation or under Part 4 or section 252, 253 or 257,

to vary or revoke such a notice,

to approve a decision to give or vary a notice under Part 4 or section 252, 253 or 257,

to approve the use of criteria under section 153, 194 or 222,

to give an authorisation under section 219(3)(b),

to approve a decision to give such an authorisation, or

to apply for or otherwise seek any issue, grant, giving, modification, variation or renewal of a kind falling within paragraph (a), (b), (d), (e), (f) or (i).

whether what is sought to be achieved by the warrant, authorisation or notice could reasonably be achieved by other less intrusive means,

whether the level of protection to be applied in relation to any obtaining of information by virtue of the warrant, authorisation or notice is higher because of the particular sensitivity of that information,

the public interest in the integrity and security of telecommunication systems and postal services, and

any other aspects of the public interest in the protection of privacy.

apply so far as they are relevant in the particular context, and

are subject to the need to have regard to other considerations that are also relevant in that context.

the interests of national security or of the economic well-being of the United Kingdom,

the public interest in preventing or detecting serious crime,

the requirements of the Human Rights Act 1998, and

other requirements of public law.

items subject to legal privilege,

any information identifying or confirming a source of journalistic information, and

relevant confidential information within the meaning given by paragraph 2(4) of Schedule 7 (certain information held in confidence and consisting of personal records, journalistic material or communications between Members of Parliament and their constituents).