An undercover officer made the purchase at Tobacco For Less.
The owner of Tobacco For Less has been charged with selling spice.
Frederick Police say Awais Khan sold synthetic cannabinoid to an undercover officer Friday night at the business, which is located on West Patrick Street. The purchase was in response to an anonymous complaint left on the tip line, police said.
Synthetic marijuana is banned in Frederick and is punishable by up to a $1000 fine and 90 days in jail.