LONDON (Reuters) - A grandmother found guilty of growing and possessing cannabis on Wednesday vowed to keep using it in her cooking as a painkiller. Patricia Tabram, 68, who lives near Hexham, was sentenced to 250 hours community service and ordered to pay 1,000 pounds of costs at Carlisle Crown Court. "I'm still going to medicate with cannabis", she said outside the court after sentencing. "This court is not fit for purpose." "I need it to keep me out of pain. I get five hours pain relief from one cup of hot chocolate with cannabis in," she said. Tabram, a campaigner for the medicinal use of cannabis, said she would appeal against the sentence. She narrowly avoided a jail sentence two years ago after admitting possession of the drug in 2005. Later that year she was arrested after police seized cannabis plants and cultivating equipment at her house.