A BUSINESSMAN charged with possessing dangerous drugs for trafficking left the High Court yesterday after a judge ruled he had no case to answer. Mr Justice Bewley discharged Po Kam-hei after directing the jury to acquit him on charges of possession of dangerous drugs for trafficking and possession of part one poison. Mr Po, 41, defended by Gary Plowman QC, had denied possessing 2,531 grams of diazepam and a total of 70,724 grams of two types of part one poison. Jeevan Hingorani, counsel prosecuting on a fiat, told the court that the drugs were found when a team of customs officers and pharmacists raided premises in a Kennedy Town factory building on February 28 last year. The drugs were analysed and found to contain two kinds of part one poison and also the sedative diazepam, classified as a dangerous drug since January 18 last year. Mr Po had claimed he bought the drugs for $40,000 from a salesman and intended to export them to Los Angeles. Making an application for no case to answer, Mr Plowman submitted that the Crown had failed to produce any evidence - either direct or inferential - to show Mr Po had any knowledge that he was dealing in dangerous drugs.