If said Board of Parole, or any member thereof, shall have reliable information that a prisoner has violated his parole, said Board, or any member thereof, at any time within the term or terms of the prisoner’s sentence, may issue a warrant to any officer hereinafter authorized to execute the same for the retaking of such prisoner. Any officer of the District of Columbia penal institutions, any officer or designated civilian employee of the Metropolitan Police Department of the District of Columbia, or any federal officer authorized to serve criminal process within the United States to whom such warrant shall be delivered is authorized and required to execute such warrant by taking such prisoner and returning or removing him to the penal institution of the District of Columbia from which he was paroled or to such penal or correctional institution as may be designated by the Attorney General of the United States.
