 Young was arrested and charged for practising medicine without a license, and in March 2014 Errol Denton, a former student of his, a UK live blood practitioner, was convicted on nine counts in a rare prosecution under the Cancer Act 1939, followed in May 2014 by another former student, Stephen Ferguson.Proponents claim that live blood analysis provides information "about the state of the immune system, possible vitamin deficiencies, amount of toxicity, pH and mineral imbalance, areas of concern and weaknesses, fungus and yeast.