324.1138.  Rulemaking authority. — 1.  The board shall adopt such rules and regulations as may be necessary to carry out the provisions of sections 324.1100 to 324.1148.

  2.  The board may establish by rule requirements for a dual license to be issued to individuals who qualify separately for both a private investigator and private fire investigator licensure.

  3.  The board may establish by rule a code of conduct.

  4.  Any rule or portion of a rule, as that term is defined in section 536.010, that is created under the authority delegated in sections 324.1100 to 324.1148 shall become effective only if it complies with and is subject to all of the provisions of chapter 536 and, if applicable, section 536.028.  This section and chapter 536 are nonseverable and if any of the powers vested with the general assembly under chapter 536 to review, to delay the effective date, or to disapprove and annul a rule are subsequently held unconstitutional, then the grant of rulemaking authority and any rule proposed or adopted after August 28, 2007, shall be invalid and void.