17 Appearances at inquiry
1 The persons entitled to appear at the inquiry shall be–
(a) the acquiring authority;
(b) any statutory objector;
(c) any other person who has served a statement of case under rule 11(1).
2 Any other person may appear at the inquiry at the discretion of the reporter.
3 Any person entitled or permitted to appear may do so on his own behalf or be represented by counsel, a solicitor or any other person.
4 Where there are two or more persons having a similar interest in the matter under inquiry, the reporter may allow one or more persons to appear for the benefit of some or all of the persons so interested.