To the extent practicable, appointments shall be broadly representative of Oaklands diversity and shall include members with knowledge and/or experience in the fields of human resources practices, management, policy development, auditing, law, investigations, law enforcement, youth representation, civil rights and civil liberties, as well as representation from communities experiencing the most frequent contact with the Department. Commissioners shall be issued identification cards, but shall not be issued and shall not display, wear, or carry badges that so resemble a peace officers badge that an ordinary reasonable person would believe that Commissioners have the authority of a peace officer.