To be appointed a public safety communications officer, a person: (1) must be a citizen of the United States; (2) must be at least 18 years of age; (3) must be fingerprinted and a search must be made of local, state, and national fingerprint files to disclose any criminal record; (4) may not have been convicted of a crime for which the person could have been imprisoned in a federal or state penitentiary; (5) must be of good moral character, as determined by a thorough background investigation; (6) must be a high school graduate or have been issued a high school equivalency diploma by the superintendent of public instruction or by an appropriate issuing agency of another state or of the federal government; and (7) must meet any additional qualifications established by the council.