Rule 23 of The Employment and Labour Relations Court (Procedure) Rules: Suits by several persons

(1) A suit may be instituted by one party on behalf of other parties with a similar cause of action.
(2) Where a suit is instituted by one person on behalf of other parties, that person shall, in addition to
the statement of claim, file a letter of authority signed by all the other parties:
Provided that in appropriate circumstances, the Court may dispense with this requirement.
(3) The statement of claim shall be accompanied by a schedule of the names of the other claimants
in the suit, their addresses, descriptions, and the details of wages due or particulars of any other
breaches and reliefs sought by each claimant.
(4) A party may file a suit about a dispute relating to interpretation, formulation or implementation
of terms and conditions of service as may be provided in the Constitution, written law, policy,
collective bargaining agreement, a contract of service or any other instrument.