In this Act:
"family member", of a child or young person—
(a) means the child's or young person's—
(i) parent, grandparent or step-parent; or
(ii) son, daughter, stepson or stepdaughter; or
(iii) sibling; or
(iv) uncle or aunt; or
(v) nephew, niece or cousin; and
(b) for an Aboriginal or Torres Strait Islander child or young person—includes a person who has responsibility for the child or young person in accordance with the traditions and customs of the child's or young person's Aboriginal or Torres Strait Islander community.