Georgia Code Title 46. Public Utilities and Public Transportation § 46-2-54

(a) In making any examination for the purpose of obtaining information pursuant to this title, the commission shall have the power to issue subpoenas for the attendance of witnesses by such rules as it may prescribe.

(b) Witnesses shall receive for such attendance the same fees and mileage as prescribed by law in civil cases in the superior court. Such compensation shall be ordered paid by the Governor upon presentation of subpoenas and statements as to the number of days served and miles traveled. Such statements shall be sworn to by the witnesses before the clerk of the commission, who shall have the power to administer oaths.

(c) If any person willfully fails or refuses to obey such subpoena, it shall be the duty of the judge of the superior court of any county, upon application of the commission, to issue an attachment for such witness and compel him to attend the meeting of the commission and give his testimony upon such matters as shall be lawfully required by such commission. The court shall have power to punish for contempt as in other cases of refusal to obey the process and order of the court.