Viagra. Talk to your doctor. To catch a thief green handed. More and more in this country people are using a glow in the dark spray. Abc's gio benitez shows us how it works. Reporter: Look at this mug... See More
Viagra. Talk to your doctor. To catch a thief green handed. More and more in this country people are using a glow in the dark spray. Abc's gio benitez shows us how it works. Reporter: Look at this mug shot with the lights on. Now look again. What made him glow in the dark? A new crime fighting tool. Police say as he broke into a car in london he was sprayed by invisible paint and under police lights he turned green. Case closed. Now watch it in an undercover sting in florida, detectives quipping a decoy car with the spray. Watch as this alleged burglar takes the bait. He opens the door, grabs something on the front seat. Then he starts to rifle through a wallet. That's when the smart water agent sprays him. Reporter: It takes months of scrubbing to get this paint off your skin and the chemical can stay on clothing for years shown here in video from smart water csi. You can't see it or smell it. Can you tell that this leather jacket has been sprayed? It has. Smart water csi says several hundred law enforcement agencies across the country now use this product. It's not just for police. People are putting the spray systems in their homes and cars. Get this. The invisible paint can be used TO MARK WATCHES ORiPHONES. If stolen, a special dna-like code can be used to find the owner. This has led to a lot of convictions worldwide? There have been over 1200 visions in the u.K. And london alone. Reporter: Police say that burglar found out the hard way and was convicted.
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