47. Warning notices
(1) A warning notice must —
(a) state the action which the Registrar proposes to take;
(b) be in writing;
(c) give reasons for the proposed action;
(d) state whether section 53 applies; and
(e) if that section applies, describe its effect and state whether any secondary material exists to which the person concerned must be allowed access under it.
(2) A warning notice must specify a reasonable period (which may not be less than 14 days) within which the person to whom it is given may make representations to the Registrar.
(3) The Registrar may extend the period specified in the notice.
(4) The Registrar must then decide, within a reasonable period, whether to give the person concerned a decision notice.