Customs officers at Hamad International Airport (HIA) have foiled an attempt to smuggle different types of narcotic substances by an Asian traveller who arrived in Doha through a direct flight from his country, local Arabic daily Al Sharq reported. The substances included around 1 kilo of marijuana, 20 Tramadol pills and some white powder. Inspection of the traveller’s bag led to the discovery of the marijuana, wrapped in carbon paper and put in a container of liquid food. The pills and the white powder were hidden in a sweets bag. HIA’s Customs Department acting director Ajab al-Gahtani told the daily that the customs inspectors were trained to detect suspects by observing their behaviour.