(a) There is created the position of director of investigation.

(b) The director shall be the chief administrative officer and shall be both appointed and removed by the Board of Public Safety with the approval of the Governor.

(c) Except as otherwise provided by this chapter, and subject to the general policy established by the board, the director shall supervise, direct, account for, organize, plan, administer, and execute the functions vested in the bureau by this chapter.