The right of suspected or accused persons to the assistance of an interpreter pursuant to the provisions of this code also applies to persons with speech or hearing impairments.
If their condition so warrants, such persons shall be assisted during the hearing, as well as in the case provided for in article D. 594-3, for their interviews with their lawyer, by a sign language interpreter or by any qualified person mastering a language, method or technical device enabling them to communicate with each other.