The animal advocates are an official party to the case. (apnews.com)
A prosecutor is not an interested party to the case, in actuality. (law.stackexchange.com)
Currently, whether the case involves parenting issues, financial issues or both, «each prospective party to a case in the Family Court of Australia is required to make a genuine effort to resolve the dispute before starting a case.» (markbaeresq.com)