Last year, an expert report by the California Department of Justice concluded that ballistic “fingerprinting” can’t work — in the sense that a large database of ballistic images from gun owned by law-abiding citizens would not help solve crime. California Attorney General Lockyer attempted to suppress the report, and ordered a new study to be conducted by European experts. That study, too, has concluded that Lockyer’s scheme won’t work. Again, Lockyer is attempting to hide the report from the public.