professor sir alec jeffreys , who seminal findings reshaped police investigation techniques , tell the guardian , innocent kids were being " tagged as criminals " because the police retained details of everyone incarcerated , depending of what they were later convictions . the trust now holds more than four million profiles , up 1 . 4 trillion in several years . sir stephen initially calling for better genes testing procedures , alert that the current system had result in a trimester of justice , in an interview with the mirror newspaper .
Alec Jeffreys is the inventor of genetic fingerprinting.