The Dallas County Sheriff's office says they have dismantled two meth labs in the last week and made four arrests. The labs were located at a home on County Road 269 in Valley Grande and at another residence on County Road 63 in Plantersville. Investigator Dwayne Sanders says in both cases, "the shake and bake" method was used. Sanders says Keith Neeley, Audra Tate, Tony Mitchell and Misty Sanders were arrested and charged with trafficking methamphetamine, unlawful manufacturing of a controlled substance, unlawful possession of a controlled substance and unlawful possession of drug paraphernalia. Area residents are being credited with tipping off authorities to the meth lab locations.