Trick and Identification of Lottery Ticket Counterfeiting
MA Ji-gang · Journal of Shanxi Police Academy · 2004
At present the lottery ticket issued in China mainly includes instant-open type and rock type. Dig-mend and oblidteration are the main tricks used for counterfeiting lottery tickets. Therefore, methods of observation by eyes, observation by microscope, inspection by ultraviolet ray, inspection by infrared ray and checking by cipher code are used to check the lottery tricks.