After section 42U of the Evidence (Miscellaneous Provisions) Act 1958 insert —
The head of jurisdiction of a court from time to time may issue practice directions, statements or notes relating to the exercise by the court of its discretion in relation to an application made in accordance with any of the following sections—
(a) section 42E;
(b) section 42L;
(c) section 42M;
(d) section 42N;
(e) section 42P.".