Roberts is known for his role in the investigation, arrest, and prosecution of Harlem "drug kingpin" Frank Lucas, who operated a heroin smuggling and distribution ring in the New York City metro area.
[5][6][7] After high school, Roberts served for six years in the United States Marine Corps and attained the rank of Sergeant before being discharged from the service in 1961.
[5] Attending night classes, he received a Juris Doctor degree from Seton Hall University School of Law and passed the Bar Examination in New Jersey in August 1971.
As the head of a Federal Bureau of Narcotics task force, Roberts is best known for his role in the investigation, arrest, and prosecution of Frank Lucas (1930-2019), an African-American drug kingpin who operated a heroin smuggling and distribution ring from Harlem in New York City in the late 1960s and early 1970s.
Lucas frequently boasted that he smuggled heroin back to the United States using the coffins of American servicemen killed in the Vietnam War.
[11][12] However, this claim has been disputed by his associate in Southeast Asia, Leslie "Ike" Atkinson (who was nicknamed "Sergeant Smack" by the Drug Enforcement Administration investigators).
[13][14] 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.
[12] 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.
[17] 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).
[19] 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.
[23] 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.