but in holed out portions on the bottom. Lucas, and his associates (largely drawn from family and close friends), sold heroin under the name "Blue Magic", and claimed that it was 98-100% pure when shipped from Thailand. However, it was cut with mannite and quinine and resulted in a final product that was only 10 percent pure when it hit the streets. However, this was much better than the rival "brands," which were lucky to be at 5 percent purity and likely less. By bypassing the trafficking middlemen, using innovative shipping, and providing a higher quality product, Lucas was able to dominate the market through the sale of heroin at inexpensive prices. Lucas claimed that he earned $1 million a day selling heroin from his base of operations on 116th Street in Manhattan, although this was later believed to be an exaggeration. Roberts disclosed on the WBGO 88.3 public radio program Conversations With Allan Wolper that heroin dealers in New York area were claiming their drugs were "Blue Magic," hoping to take advantage of the publicity generated by American Gangster. In January 1975, Lucas's residence in Teaneck, New Jersey, was raided by a task force consisting of agents from Group 22 of the federal Drug Enforcement Administration and detectives from New York Police Department's Organized Crime Control Bureau (OCCB). In 1976, Lucas was convicted of drug trafficking and distribution offenses and sentenced to 70 years in prison (a consecutive 40-year federal prison sentence and 30-year New Jersey state prison sentence). After cooperation in the prosecution of over 100 other drug-related cases, Lucas was offered placement in the federal witness protection program, and in 1981 after 5 years in prison custody, his sentence was reduced to "time served" with lifetime parole supervision. After violating parole with a minor drug distribution offense, Lucas (who was defended by Roberts) was returned to prison and was released in 1991. Depictions in media The story of Roberts' investigation and prosecution of Frank Lucas was adapted into the 2007 film American Gangster, starring Academy Award-winning actors Denzel Washington portraying Lucas and Russell Crowe portraying Roberts. The film grossed more than US$127 million and was met with generally positive reviews. However, several people involved with the actual events regarding the investigation and prosecution (including Lucas and Roberts) have criticized the film as a largely fictional and exaggerated portrayal that contained inaccuracies and fabrication. The film portrays Roberts