From Our Own Correspondent

Captagon is a popular recreational drug used across the Middle East and Arabian Gulf. It can temporarily boost a user’s mood - though long-term it is highly addictive. Production is concentrated in Syria, and smuggled across the border into Jordan and onto the Gulf. Officials in Jordan say militant groups are profiting from the production of the drug, and Yolande Knell has been out on patrol with the people trying to stop them.About 2500 miles due south of Jordan, there is another criminal trade at large: the illegal catching and selling of Tanzanian fish. Mark Weston has been to Lake Victoria to hear about its controversial local delicacy: Nile Perch.Celebrations of the Queen's Platinum Jubilee are not restricted to Britain. Elizabeth II is head of state in 14 other countries, and a figurehead around the Commonwealth. Another country which feels a connection to Britain’s royal family is Greece, because Prince Philip was born there, on the island of Corfu. Julia Langdon has been to the spot where the Queen’s