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A law enforcement officer walks past a pile of marijuana seized during a raid at Swiss Medical in Boulder, Colorado November 21, 2013. BOULDER DAILY CAMERA / Mark Leffingwell ( 1121WEED1 )

Officers are investigating VIP Cannabis at 2949 West Alameda Avenue in Denver, Colorado November 21, 2013. Federal authorities were executing search warrants and seizure warrants at multiple Denver-area medical marijuana facilities, according to the U.S. Department of Justice. (Photo by Hyoung Chang/The Denver Post) ( pot_raidpot_raidHC1_5212 )

A law enforcement officer walks past a pile of marijuana seized during a raid at Swiss Medical in Boulder, Colorado November 21, 2013. BOULDER DAILY CAMERA / Mark Leffingwell ( 1121WEED2 )

Officers are investigating VIP Cannabis at 2949 West Alameda Avenue in Denver, Colorado November 21, 2013. Federal authorities were executing search warrants and seizure warrants at multiple Denver-area medical marijuana facilities, according to the U.S. Department of Justice. (Photo by Hyoung Chang/The Denver Post) ( pot_raidHC2_2705 )

A customer walks away from VIP Cannabis at 2949 West Alameda Avenue in Denver, Colorado November 21, 2013. Federal authorities were executing search warrants and seizure warrants at multiple Denver-area medical marijuana facilities, according to the U.S. Department of Justice.. (Photo by Hyoung Chang/The Denver Post) ( pot_raidHC2_2398 )

Officers are investigating VIP Cannabis at 2949 West Alameda Avenue in Denver, Colorado November 21, 2013. Federal authorities were executing search warrants and seizure warrants at multiple Denver-area medical marijuana facilities, according to the U.S. Department of Justice. (Photo by Hyoung Chang/The Denver Post) ( pot_raidHC2_2381 )

Officers are investigating VIP Cannabis at 2949 West Alameda Avenue in Denver, Colorado November 21, 2013. (Photo by Hyoung Chang/The Denver Post) ( pot_raidHC2_2404 )

Officers are investigating VIP Cannabis at 2949 West Alameda Avenue in Denver, Colorado November 21, 2013. (Photo by Hyoung Chang/The Denver Post) ( pot_raidHC2_2444 )

Officers are investigating VIP Cannabis at 2949 West Alameda Avenue in Denver, Colorado November 21, 2013. (Photo by Hyoung Chang/The Denver Post) ( pot_raidHC2_2530 )

Officers are investigating VIP Cannabis at 2949 West Alameda Avenue in Denver, Colorado November 21, 2013. Federal authorities were executing search warrants and seizure warrants at multiple Denver-area medical marijuana facilities, according to the U.S. Department of Justice. (Photo by Hyoung Chang/The Denver Post) ( pot_raidHC2_2783 )

Officers are investigating VIP Cannabis at 2949 West Alameda Avenue in Denver, Colorado November 21, 2013. (Photo by Hyoung Chang/The Denver Post) ( pot_raidHC2_2832 )

Officers are investigating VIP Cannabis at 2949 West Alameda Avenue in Denver, Colorado November 21, 2013. Federal authorities were executing search warrants and seizure warrants at multiple Denver-area medical marijuana facilities, according to the U.S. Department of Justice. (Photo by Hyoung Chang/The Denver Post) ( pot_raidHC2_2869 )

Officers are investigating VIP Cannabis at 2949 West Alameda Avenue in Denver, Colorado November 21, 2013. Federal authorities were executing search warrants and seizure warrants at multiple Denver-area medical marijuana facilities, according to the U.S. Department of Justice. (Photo by Hyoung Chang/The Denver Post) ( pot_raidHC2_2898 )

A front loader dumps several hundred pounds of medical marijuana seized during a raid at Swiss Medical into the back of a large truck in Boulder, Colorado November 21, 2013. BOULDER DAILY CAMERA / Mark Leffingwell ( 1121WEED3 )