The invention relates to a device and a method for recovering an unmanned underwater vehicle. When an e-mail is received at the system, it is scrutinized relative to the information in the database. Doctors can examine the scan of the patient first and then make decision for surgical guide. The protective device has a control unit for opening at least one switch in the event of a malfunction. The assembly may further comprise a spacer between the hole and the rear of the vehicle. The method and system uses a controlled scatterer of light positioned in the near field of a sample.