(1) A child of a person includes:
(a) someone who is a child of the person within the meaning of the Family Law Act 1975 ; and
(b) an adopted child or step‑child of the person.
It does not matter whether the child is an adult.
(2) If, under this section, one person is a child of another person, other family relationships are also to be determined on the basis that the child is a child of that other person.
Note: For example, for the purpose of leave entitlements in relation to immediate family under Division 7 of Part 2‑2 (which deals with personal/carer's leave and compassionate leave):
(a) the other person is the parent of the child, and so is a member of the child's immediate family; and
(b) the child, and any other children, of the other person are siblings, and so are members of each other's immediate family.