A Redding woman has been sentenced to federal prison for her involvement in a large-scale Marijuana cultivation and distribution ring. On June 21st seven federal warrants were served in Sacramento, Sutter, and Tehama Counties. Thomas and David Jopson were allegedly maintaining large commercial greenhouses at their family's ranch in Rio Oso and at Cal-Nevada Wholesale Florist in Sacramento. More than 5-Thousand Marijuana Plants were seized at the two locations. The Jopson brothers alleged that they were legally growing medical Marijuana, but that's use is not recognized by federal law. One of the managers arrested in the raids is 34-year-old Aimee Sisco of Redding. Last week she pleaded guilty to cultivation and has been sentenced to 38 months in prison. Tuesday the Jopson brothers were sentenced to one year in prison.