Section 64Procedure for authorisations and authorised notices

(1) An authorisation must specify—

• (a)
  ^F1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
• (aa)
  [^F2 whether the authorisation has been granted by the Investigatory Powers Commissioner under section 60A or by a designated senior officer under section 61 or 61A;]
• (b)
  the matters falling within [^F3section 60A(7), 61(7) or 61A(7) (as applicable)] by reference to which it is granted,
• (c)
  the conduct that is authorised,
• (d)
  the data or description of data to be obtained, and
• (e)
  the persons or descriptions of persons to whom the data is to be, or may be, disclosed or how to identify such persons.

(1A) [^F4 An authorisation granted by a designated senior officer under section 61 or 61A must also specify the office, rank or position held by the officer.]

(2) An authorisation which authorises a person to impose requirements by notice on a telecommunications operator must also specify—

• (a)
  the operator concerned, and
• (b)
  the nature of the requirements that are to be imposed,

but need not specify the other contents of the notice.

(3) The notice itself—

• (a)
  must specify—

  • (i)
    the office, rank or position held by the person giving it,
  • (ii)
    the requirements that are being imposed, and
  • (iii)
    the telecommunications operator on whom the requirements are being imposed, and
• (b)
  must be given in writing or (if not in writing) in a manner that produces a record of its having been given.

(4) An authorisation must be applied for, and granted, in writing or (if not in writing) in a manner that produces a record of its having been applied for or granted.