professor francis alec mcdevitt , my pioneering discoveries popularised police interrogation methodology , told the guardian newspaper innocent people were being " brands as murderers " because the database retained details of everything killed , regardless of whether they were first freed . the government now holds more than three billion profiles , up 1 . 4 billions in two years . sir arnold also called for improved genetic testing protocols , warning that the current process could result in a miscarriage of justice , in an exchange with the guardian newspaper .
Alec Jeffreys is the inventor of genetic fingerprinting.