The 65-year-old actor was charged with conspiracy after federal agents raided his business Nice Dreams Enterprises, Inc and seized thousands of bongs and pipes. The actor was selling the drug paraphernalia over his website. He pleaded guilty to conspiracy last spring in federal court and was sentenced to nine months in prison. 

He began serving his sentence on October 8th. 

He was targeted by the Justice Department in their crack down on drug paraphernalia. Prosecutors charged that Chong grew wealthy by promoting drug use in his film and comedy albums. Chong gained fame with his comedy partner Cheech Marin with a series of films and comedy albums in the 70�s. Chong portrayed a stoned hippy in most of his films. Prosecutors claim that Chong used his celebrity to help sell the drug paraphernalia through mail order and his website. 
 
 

.