Section 9 of the Principal Act is amended -

(1) in subsection (1) -

(a) by the substitution of "who appears to the court or adjudication officer, as the case may be," for "who appears to the court", and

(b) in paragraph (b) -

(i) by the substitution of "explanation to the court or adjudication officer, as the case may be," for "explanation to the court", and

(ii) by the substitution of "assistance to the judge, adjudication officer or jury, as the case may be" for "assistance to the judge or, as the case may be, jury".

(2) in subsection (2) -

(a) by the substitution of "a court or adjudication officer, as the case may be, may" for "a court may", and

(b) by the substitution of "admissible in proceedings under this Act" for "admissible in proceedings for an offence under section 6 or 7".