Burglar Alarm Using DNA

Police in the UK are testing an anti-burglary device manufactured by RedWeb Security that sprays burglars with a red dye mixed with DNA. When activated, an automated sentry sprays the burglar and leaves an indelible stain which manufacturers claim can’t be removed for several days. The stain is a unique “signature” that links the burglar with the crime scene. The same company makes Guarda, a personal safety alarm utilizing the same type of DNA-laced spray.

~Telegraph, July 24, 2005