(1) For the purposes of this Act, a relative of a person—
(a) means any of the following, whether of the whole blood or half-blood or by marriage, and whether or not the relationship depends on adoption of the person—
(i) the person's father, mother, grandfather or grandmother;
(ii) the person's son, daughter, grandson or granddaughter;
(iii) the person's brother or sister;
(iv) the person's uncle or aunt;
(v) the person's nephew or niece;
(vi) the person's cousin; and
(b) for an Aboriginal or Torres Strait Islander person—includes a person who, under Aboriginal or Torres Strait Islander tradition or contemporary social practice, is the person's relative.
(2) For domestic partners, a "relative" includes a person who would be a relative if the domestic partners were married to each other.