Operation Greylord was the longest and most successful undercover investigation in FBI history, and the largest corruption bust ever in the US. It resulted in bribery and tax charges against 103 judges, lawyers, and other court personnel, and, eventually, more than 70 indictments. And it was led by Terrence Hake, a young assistant prosecutor in the Cook County State's Attorney's Office in Chicago, who worked undercover for nearly four years.
"Historic investigation, excellently narrated"
An account of the murdering spree of Larry Eyler, who kidnapped, tortured, and killed at least 23 young men, describes how Eyler managed to evade capture for three years, his apprehension, and his release on a technicality.