57.—(1) The registrar must serve on the person to whom proceedings relate—
(a)a notice of reference of the case;
(b)an application for permission to refer the case.
(2) Where the Attorney General applies for permission to refer a case, the registrar must give the person to whom proceedings relate notice—
(a)that the outcome of the reference may make a difference to his sentence, and in particular may result in a more severe sentence;
(b)that he may serve a respondent’s notice;
(c)of the effect of regulations—
(i)7(1) (entitlement of offender to be present at hearings),
(ii)7(2) (offender in custody requires leave to be present at hearing),
(iii)7(3) (power of court to pass sentence on offender not present), and
(iv)9 (entitlement of offender to reasonable costs),
of the 2009 Regulations.