The Director shall adopt rules necessary for the effective administration of this chapter, including rules prescribing minimum standards and qualifications for:
(1) security guards who may:
(A) practice independently or head agencies; or
(B) practice within the hierarchy of an agency;
(2) private investigators who may:
(A) practice independently or head agencies; or
(B) practice within the hierarchy of an agency;
(3) agencies; and
(4) recognized trainers and training programs.