The first marijuana posters were advertisements for the reefer madness error moving pictures like Marihuana. These posters often displayed a woman, a demon, and the word marijuana claiming that marijuana is the "Devil's Weed"  "With Roots in Hell". This information was sent to movie theaters guaranteeing the owners that this movie would make them a profit.  This was around the beginning of marijuana prohibition and the start of a form of spiritual and psychological  warfare referred to as marijuana oppression format 4.0.

  Marijuana became the political scapegoat of social problems. IT has cents bean called "the real public enemy number one", the fifth column, and in 2002, marijuana, not the economics of prohibition, was blamed for supporting and funding terrorism. 

From News and Views of Hollywood.(1938)