Security Risk: Part 1 Crown Court : Season 3 Episode 88

Robert Denton, a clerical officer at a weapons research establishment, stands charged with copying a secret document about a missile and then selling the information to the Soviet Union. The prosecution offer unusual proof that he copied the document and argue that he sold the information for £5000 to try to solve his major financial difficulties. Denton denies the charges and insists he would never betray his country.