Administrative proceedings shall be initiated at the request of a Party or ex officio. The party may submit the request for initiation directly to the public legal body in writing or orally to the minutes, and may send it by post or by electronic means. The procedure is initiated ex officio when required by law or is necessary in order to protect the public interest. Administrative proceedings may also be initiated by a public legal body by public disclosure where the parties are unknown or such a method of initiating proceedings is prescribed by law.