For millions of people across the world lighting up a joint is no more controversial than having a cup of tea. But in Hash Wensley Clarkson explores the dark & sinister side of this multi-billion pound business: one fuelled by a brutal underworld network of dealers drug barons bent cops & even terrorists. Sex intimidation bribery & murder are all employed in a quest for vast profits. Travelling from the lawless Rif mountains in Morocco to darkened warehouses in Spain protected by heavily armed gangsters this is a revelatory roller-coaster ride through the secret world of Hash.