Intelligent banknote neutralisation system

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An intelligent banknote neutralisation system (IBNS) is a security system which protects valuable items by rendering them unusable or easily detectable if an unauthorised individual tries to gain access to them. Dye packs are commonly used to safeguard currency against bank robberies in this manner; when such a pack is taken out of the bank, it releases an indelible dye that stains the money with a conspicuous bright color, making it easy to recognise as stolen. Bonding agents (glues) have been used more recently as alternative degradation agents.

Well-neutralised banknotes cannot be brought back into circulation easily. They can be linked to the crime scene and restricted procedures are in place to exchange them at the financial institution. This makes stealing neutralised banknotes uneconomical and impractical. In addition to foiling thefts, the IBNS acts to deter further attacks by removing the anticipated reward of the crime and increasing the risk of being caught.