DeKalb County Sheriff's Department deputies, serving a search warrant for the illegal sale of weapons late Thursday night, apparently discovered a meth lab and marijuana operation on Old Mill Hill Road in Dowelltown.Anthony Mason Adcock, 43, came as the result of a lengthy investigation by the sheriff's department. Two other arrests were also made, 42-year-old Tammi Faye Adams and 34-year-old Shawn Bradley Patton were reportedly taken into custody at the residence.Adcock was charged with two counts of possession of a weapon by a felon, manufacture of a Schedule VI drug (marijuana) and initiating a process to result in the manufacture of methamphetamine.His bond was set at $125,000, and he will appear in court on May 16.Adams was charged with manufacture of a Schedule VI drug (marijuana) and initiating a process to result in the manufacture of methamphetamine.Her bond was set at $50,000, and she will appear in court on May 16 as well.Money, an outside security system, and a car were seized in the operation.The home has been placed under quarantine because of the meth lab discovery.Patton was arrested at the scene for violation of parole.According to Sheriff Patrick Ray, the investigation into Adcock’s activities has been going on for some time. “Adcock has a lengthy criminal background and he is no stranger to law enforcement,” the sheriff said.