USE OF TELEPHONES (OPINION) telephone communication provided for. It is desirable that these telephones be retained by their owners, who may be advised that the taking of pictures is forbidden during their stay, and that a posteriori sanctions may be imposed (confiscation of the mobile phone, for example) in the event of failure to comply with this prohibition, as defined by the rules of procedure. These simple measures impact the full effectiveness of a right that the law or rules of procedure already accord to prisoners or foreigners held in detention or waiting areas. 71