(1) All criminal actions for violations of this chapter, or any rules or regulations issued pursuant to this chapter, shall be prosecuted by the district attorney general of the judicial district in which the violation occurs, or the attorney general and reporter, in which case a prosecutor shall be dispensed with and no prosecutor need be marked on the indictment for the violation.
(2) The grand juries of the state are given inquisitorial powers over the violations of this chapter.
(3) In the event any criminal actions for the violation of this chapter or any rules or regulations issued pursuant to this chapter should, in the opinion of the appropriate district attorney general, be initiated by a criminal warrant for the purpose of providing the accused a preliminary hearing to determine probable cause, the appropriate district attorney general or assistant district attorney general shall sign the warrant.