South Koreans Custom service have deployed worlds first cloned sniffer dogs, to check for drugs at the main airport and border crossing. Agency says it's difficult to find good sniffer dogs, only about 30% naturally-born sniffer dogs make the grade.
Six puppies were cloned from a Canadian-born sniffer dog in late 2007,and after completing a 16 month training programme, they are deployed. They all are called Toppy. Official says that they are the world first sniffer dog deployed and perform better that natural-born sniffers.