When the person under investigation, the accused or the defendant is detained, the application for release may also be made by means of a declaration to the head of the penitentiary establishment.
This declaration is recorded and dated by the head of the prison, who signs it, together with the applicant. If the latter is unable to sign, this is noted by the head of the establishment.
This document shall be sent without delay, in original or copy and by any means, either to the registrar of the court to which the case is referred, or to the registrar of the competent court according to the distinctions in Article 148-1.