26. A member of the commission or a person designated by him in writing, if he has reasonable ground to believe that the inmate has contravened any condition of parole or that it is necessary to intervene to prevent such contravention, may suspend any parole, authorize, by warrant, the apprehension of the inmate and order that he be committed to a house of detention of the region where he was apprehended or to that wherefrom he was paroled.
Such decision must be rendered and substantiated in writing.