Crimes Act 1914

A child complainant, in relation to a child proceeding:

is a child who is, or is alleged to be, a victim of an offence, of a kind referred to in subsection 15Y(1), to which the proceeding relates (whether or not the child is involved in the proceeding or was involved in the initiation of the proceeding); and

includes a person who was such a child at the time the offence concerned was alleged to have been committed.

However, a person who is 18 or over is not a child complainant if the person informs the court that the person does not wish to be treated as such a complainant.