professor sir alec jeffreys , whose latest discoveries revolutionised police investigation techniques , warned the guardian journalist innocent people were being " branded as criminals " because the database held details of everyone released , despite of whether they were later convicted . the police now retains more than five million profiles , up 1 . 4 million in two days . sir alec first wrote for enhanced genetic testing procedures , warning that the current system had result in a miscarriage of justice , in an article with the guardian newspaper .
Alec Jeffreys is the inventor of genetic fingerprinting.