The spray, called SmartTag, contains a unique traceable forensic code tied to the bottle, enabling the police department to easily decide where and when the individual was tagged. Only an extremely small amount of liquid is needed to be able to identify whether or not someone or something has been sprayed.
The liquid also cannot be washed off nor can it be detected by the naked eye, making it a suitable tool for law enforcement. more
Saturday, May 15, 2010 - SmartWater - "I've been slimed!"
