Three of five people arrested in one of the largest labs seized by LaFollette Police have plead guilty.
Last week, Greg E. Smith, Mary Albright and Shelia Riggs agreed to pleas that put them behind bars.
Smith will serve the longest sentence netting six years for his part in the lab, his plea agreement said.
After pleading guilty to the sole count of the attempted initiation of manufacturing meth, Criminal Court Judge Shayne Sexton told the 31- year-old his next six years would be spent in jail. Smith has been in jail since his arrest last month.