To easily track and arrest a robber by attaching a bad smell to stolen money or articles and to contaminate stolen money or articles with a bad smell to prevent them from being used.

A sensor 2 and a closed container of malodorous material and a discharge device thereof are incorporated in a storage container 1 for cash or noble metals and if an attempt is made to take out money or articles illegally, an malodorous material is discharged to contaminate the money or noble metal. The sensor 2 includes a network 5, in addition to a well known technology, to sense the cutting off or break of the primary part of the container 1 other than an opening so that a robber cannot operate the sensor 2. In the network 5, metal films or the like are printed on a soft or hard insulating plate and conductive plates or wires or twisted wires thereof or woven-cloth-like blocks are connected in series and surfaces or peripheries of conductors are covered. The closed container is protected completely with a long-period conservable glass against a shock. The malodorous material is composed of a material, in small quantities, able to emit special smell for a long period of time or a special ink which can be identified by visual inspection or machine. The discharge device is small in size and lightweight and has a simple construction and a malfunction thereof can be avoided.