This is really possible! Domestic Trade and Consumer Affairs Ministry has been using nanotechnology in order to confiscate illegally used subsidized diesel. The ministry is using the NanoTag programme under which the subsidized diesel is tagged with nanoparticles at distribution depots of all fuel companies before the distribution process begins. Nanotechnology is being used by the ministry for detection of subsidized diesel and this had helped them in bringing down the fuel misuse cases by half and hence reduce smuggling of the fuel. With the aid of the nanotechnology, the team has been able to catch 342,400 liters of subsidized fuel. Nanotechnology has surely proved efficient in bring down illegal activities which otherwise would have been hard to detect. Security agencies around the world can surely gain from it.