By almost every measure, Paul Pfingst is an unsentimental prosecutor. Last week the San Diego County district attorney said he fully intends to try (1)_____ Charles Andrew Williams, 15, as an adult (2)_____ the Santana High School shootings. Even before the (3)_____ Pfingst had stood behind the controversial California law that (4)_____ treating murder suspects as young as 14 as adults. So nobody would have wagered that Pfingst would also be the first D.A.(district attorney) in the U.S. to (5)_____ his very own Innocence Project. Yet last June, Pfingst told his attorneys to go back over old murder and rape (6)_____ and see ff any unravel with newly developed DNA-testing tools. In other words, he wanted to revisit past victories—this time playing for the other team. 'I think people misunderstand being conservative (7)_____ being biased', says Pfingst. 'I consider myself a pragmatic guy, and I have no interest in putting (8)_____ people in jail'. Around the U.S., flabbergasted defense attorneys and their jailed clients cheered his move. Among prosecutors, (9)_____, there was an awkward pause. (10)_____, each DNA test costs as much as $5,000. Then there's the (11)_____ risk: if dozens of innocents (12, the D.A. will have indicted his shop. (13)_____ nine months later, no budgets have been busted or prosecutors ousted. Only the rare case merits review. Pfingst's team considers convictions before 1993, when the city started (14)_____ DNA testing. They discard cases if the defendant has been released. Of the 560 (15)_____ files, they have re-examined 200, looking for cases with biological evidence and defendants who still (16)_____ innocence. They have identified three so far. The most compelling involves a man (17)_____ 12 years for molesting a girl who was playing in his apartment. But others were there at the time. Police found a small drop of saliva on the (18)_____ shirt—too small a (19)_____ to test in 1991. Today that spot could free a man. Test results are due any day. (20)_____ by San Diego, 10 other counties in the U.S. are starting DNA audits.