The following article by Jon Hanna from the Vernal Equinox 2006 issue of The Entheogen Review is an expose relating details about the 2006 public outing of John Halpern as a DEA snitch in the trial against William Leonard Pickard and Clyde Apperson, charging them with LSD production/distribution. As Halpern has also been a prominent MAPS-supported psychedelic researcher, MAPS founder Rick Doblin responds to Hanna’s article at the end of the piece, explaining his reasons for working with Halpern.


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