Attorneys and investigators employed by the council shall meet the same qualifications as those provided by Code Section 15-18-21 for attorneys and investigators employed by district attorneys. Such attorneys and investigators shall take and subscribe to an oath similar to the oath required by district attorneys. When assisting a district attorney, solicitor-general, or the Attorney General, such attorneys and investigators shall have the same authority and power as an attorney or investigator employed by such district attorney, solicitor-general, or the Attorney General. Investigators employed by the council and authorized by the council to carry weapons or to exercise any of the powers of a peace officer of this state shall meet the requirements of Chapter 8 of Title 35.