McDonald's in Australia, having suffered from a recent spat of robberies have teamed up with security firm SelectaDNA to install sprayers above its doors that will douse robbers with an invisible mist of DNA.
The newly introduced DNA will then seep harmlessly into his or her skin for two weeks (and clothes for six months) allowing the police to reveal the culprit using UV light.
The spray is both invisible and odorless, but even if the hapless highwayman notices the deoxyribonucleic acid rain cloud, SelectaDNA assures that its chemical concoction is "virtually impossible to remove." Making matters worse for the offender is that each DNA sequence is unique to the location to which it was installed, meaning a successful forensic identification is 100% admissible in court.
Geekologie
