(1) An offender's admission of guilt in relation to a relevant drug offence is not admissible in evidence in a proceeding in relation to that offence if the admission was made during—
(a) the preparation of a drug and alcohol treatment assessment of the offender; or
(b) administering a treatment order for the offender.
(2) The admission, and any evidence obtained as a result of the admission, is not admissible in a criminal proceeding against the offender for the relevant drug offence.
(3) However, subsections (1) and (2) do not prevent a criminal proceeding against the offender for the relevant drug offence if evidence of the offence exists in a form other than the admission made by the offender or the evidence obtained as a result of the admission.
(4) In this section:
"relevant drug offence" means the following:
(a) an offence against the Criminal Code
, section 618;
(b) an offence against the Drugs of Dependence Act 1989
, section 162, section 164, section 169 or section 171;
(c) an offence against the Medicines, Poisons and Therapeutic Goods Act 2008
, section 26 (2), section 34 (1) or (2), section 37 (2) or section 43 (3);
(d) an offence prescribed by regulation.