§ 8. Additional officers and employees. The chairman shall have power
to employ such officers, clerks, inspectors, experts and employees, and
to make such contracts for special services as he may deem to be
necessary to carry out this chapter, or to perform the duties and
exercise the powers conferred by law upon the commission. The chairman,
by certificate filed in the office of the commission may from time to
time, specially authorize any officer or employee of the commission to
conduct any investigation or hearing, which the commission is authorized
to conduct, to take testimony in respect of the subject or matter under
investigation, and report the testimony to the commission, and in the
conduct of such investigation or hearing such officer or employee shall
have all the powers of a commissioner.