Mr. Strang said the heroin ring's financial records were kept there.

Gene Gotti was convicted in 1989 of running a multimillion-dollar heroin ring.

All told, the police and the D.E.A. broke up three large heroin rings.

By the sixteenth year of operation, Tiger was the world's biggest heroin ring.

The authorities said Mr. Gomez was head of the heroin ring.

They run a heroin ring worth billions of dollars a year.

Throwing himself into his work as an undercover cop, he became involved in a sting operation directed at an Italian heroin ring.

As a result of his undercover work, the police broke up a heroin ring at Brooklyn College in 1971.

One woman, an Essex County corrections officer who officials said helped her boyfriend run a heroin ring, was also charged.

Bulgaria's gotten increasingly sentimental since the Cold War days when its secret service agency operated a heroin ring.