The scientist becomes a victim -- A new prosecutor -- The transition to DNA evidence -- The fight for acceptance -- A stranger rapist and a murderer : early sucess with DNA evidence -- A double-edged sword : DNA for and against the prosecution -- A child and a critical nightshirt -- DNA and a football hero collide -- Back home again in San Diego : an unusual rape case -- When a match is not a match -- Exonerations, databases & S.T.R.'s -- A national approach -- The D.A.'s office searches for innocence -- DNA takes to television -- The tragic case of a small child -- A cold hit DNA match solves an old crime -- Helena Greenwood revisited.