For the purposes of this Act, where any thing is done by, on behalf of or for the benefit of, or any property is held by, or in trust for, or for the members of, a body or organisation, incorporated or unincorporated, being a body or organisation that the thing is taken to be done by, on behalf of or for the benefit of that party or the property is taken to be held by that party, as the case may be.(a) forms part of a registered party; or(b) is established by or under the constitution of a registered party; or(c) has functions conferred by or under the constitution of a registered party; or(d) is controlled (within the meaning of section 50AA of the Corporations Act 2001 of the Commonwealth) by a registered party