A Joint Operation By The Carter And Johnson County Sheriff’s Departments Has Resulted In The Arrest Of Several Johnson County Residents On Meth Charges. Most Of The 20 Arrests Were Made In Johnson County But Many Were Brought To The Carter County Jail Because The Charges Stemmed From The Purchase Of Psuedoephedrine In Carter County Pharmacies. According To Carter County Sheriff Chris Mathes, A Meth Lab Was Uncovered During The Investigation.