In this part—
"child" means an individual under 18 years who is not, and has never been, married.
"guardian" , of a child, does not include a person who has guardianship of the child, under another Act, in the person’s capacity as the chief executive of a department of government of the Commonwealth or a State or as a Minister of the Commonwealth or a State.
"parent" , of a child—
(a) includes—(i) for an Aboriginal child—a person who, under Aboriginal tradition, is regarded as a parent of the child; and(ii) for a Torres Strait Islander child—a person who, under Island custom, is regarded as a parent of the child; but
(b) does not include a parent whose parental responsibility for the child has been ended by—(i) a decision or order of a federal court or a court of a State; or(ii) a decision or order of another court that has effect in Queensland.