Certainly! It sounds like you are referring to the case of Harry Anslinger, who was the first commissioner of the U.S. Treasury Department's Federal Bureau of Narcotics. In the 1930s, Anslinger played a key role in the criminalization of marijuana in the United States, and he did so by using false statements and falsified material.

One specific example involves Anslinger's claim that marijuana use could lead to insanity, violence, and other criminal behavior. To support this claim, Anslinger presented the U.S. Congress with the testimony of 29 medical experts. However, it was later revealed that Anslinger had actually falsified the testimony of these experts and that many of them had never actually made the statements attributed to them.

There are many sources available that discuss the role of Harry Anslinger in the criminalization of marijuana, as well as his use of false statements and falsified material to support his claims. Some potential starting points for your research might include:

"The Emperor Wears No Clothes" by Jack Herer
"Smoke Signals: A Social History of Marijuana - Medical, Recreational, and Scientific" by Martin A. Lee
"Reefer Madness: Sex, Drugs, and Cheap Labor in the American Black Market" by Eric Schlosser
I hope this information is helpful! Let me know if you have any other questions.
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