The object, which we want to protect, is marked with protective devices (microchips, microdots,glass-etching, labels) that bear the unique code. Identification set contenting these devices is further registered in the central register. In this register there is a defined strong linkage between devices and a set, between a set and a protected object, between a protected object and an owner of the account. These linkages allow to determine the owner of the protected object unequivocally when we find the only protective device. www.krimistop.com