58A. Who is a family member

P is a “family member” of Q and vice versa if —

P is the spouse or former spouse of Q;

P is a child (including an adopted child or stepchild) of Q;

P is the father or mother of Q;

P is the father‑in‑law or mother‑in‑law of Q;

P is a brother or sister of Q;

P —

is a relative of Q (including a relative through marriage or adoption); and

should in the circumstances be regarded as a member of Q’s family; or

P —

is wholly or partially incapacitated or infirm because of physical or mental disability or ill health or old age; and

should in the circumstances be regarded as a member of Q’s family.