Abstract: The present invention concerns a system for the search for randomly classified objects such as documents which are provided with a classification code, and comprises a control device 1 which is to emit a signal corresponding to the code of the object being sought and at least one locating device 10, 20, 70 associated to each object, each locating device 10, 20, 70 being constituted by a memory device 11, 21, 71 wherein has been stored the code of the object and a comparison device 12, 22, 72 for the comparison of the code contained in the memory device with the code obtained from the signal emitted by the control device, and to emit a signal which controls a detection device 13, 23, 73 which is interdependent with the sought object.