Georgia Code Title 42. Penal Institutions § 42-6-1

(1) “Commissioner” means the commissioner of corrections.

(2) “Department” means the Department of Corrections.

(3) “Detainer” means a written instrument executed by the prosecuting officer of a court and filed with the department requesting that the department retain custody of an inmate pending delivery of the inmate to the proper authorities to stand trial upon a pending indictment or accusation, or to await final disposition of all appeals and other motions which are pending on any outstanding sentence, and to which is attached a copy of the indictment, accusation, or conviction which constitutes the basis of the request. The request shall contain a statement that the prosecuting officer desires and intends to bring the inmate to trial upon the pending indictment or accusation, and in the case of an outstanding sentence, that he intends to seek final disposition of all appeals and other motions.