Dozens of FBI agents, including the former head of the FBI’s Washington field office, cheated on an open book exam about conducting surveillance on American citizens, according to a Justice Department investigation.

Inspector General Glenn Fine said his limited review found that employees consulted with others while taking the computer exam, used answer sheets and exploited a programming flaw that revealed the answers during the tests. Hundreds of test-takers completed the 90-minute exam in 20 minutes and passed, according to the report.

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