The inventor of genetic fingerprinting, Professor Sir Alec Jeffreys, today warns that the government is putting at risk public support for the DNA national database by holding the genetic details of hundreds of thousands of innocent people.Source: GuardianJeffreys, whose pioneering discoveries revolutionised police investigation techniques, condemned the government for leaving innocent people "branded as criminals" by its insistence on keeping the details of everyone arrested, regardless of whether they are later convicted.