ted as a party, in an agency proceeding, and a person or agency admitted by an agency as a party for limited purposes??? (c) very ambiguous (i) is the prosecutor for the agency included as a ???person other than an agency??? or a ???party???? (ii) the agency???s outside expert? (iii) is the agency itself a party? (iii) about a fact in issue (iv) in formal adjudication, except for (a) applications