Faulty Testimony, Practices Found in FBI Lab Probe

FBI crime laboratory experts gave inaccurate testimony at the trials of defendants in the World Trade Center blast and the 1989 bombing of Avianca Flight 203 in Colombia, and lab scientists and technicians used shoddy analysis and did not follow procedures in scores of other cases, the Justice Department's inspector general concluded. Those findings, coupled with serious problems in the way lab officials conducted themselves in the Oklahoma City bombing and the O.J. Simpson case, are part of a s