324.1116.  Agency hiring criteria. — A private investigator agency or private fire investigator agency shall not hire any individual as an employee unless the individual:

  (1)  Is at least twenty-one years of age;

  (2)  Provides two recent photographs of themselves, of a type prescribed by the board;

  (3)  Has been fingerprinted in a manner approved by the Missouri state highway patrol, central repository, under section 43.543; and

  (4)  Complies with any other qualifications and requirements the board adopts by rule.