Cutting deals with criminal informants may, at times, be a necessary if unsavory part of law enforcement. But the benefits must outweigh the costs, and it is not clear the F.B.I.’s Boston office has mastered that balance.
A police wiretap referred to in documents filed in a Boston court shows the Mafia capo Mark Rossetti telling his F.B.I. handler that “he knows he will be protected for the crimes he has been committing with the knowledge of his handler.”
The crimes he was talking about include running a heroin and loan-sharking ring, for which Massachusetts indicted and locked him up last year. He is also being investigated for six murders. The Boston Globe reports that the Massachusetts State Police only learned about his link to the F.B.I. through its wiretaps of Mr. Rossetti.
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