Malaysian Customs followed a pair of Nigerians and a woman suspected from Laos for trafficking cannabis at North-South Expressway in Rawang on 12 October 2011.
Nigerian male with the woman was arrested and the result of detention, a total of 37 kilograms of cannabis was estimated at RM90,000 was seized.
The 37-year-old Nigerian man who drove the first car was held and his girlfriend was riding another vehicle detained separately. The Nigerian who drove the second car was able to get away.
31 packets weighing 37 kilograms of compressed cannabis wrapped in newspaper were found in the rear of the first Nigerian man's car.
The detained Nigerian man was in the country for almost a year and in a private college, while the female suspect was traced three times to enter the country within a year.
Both suspects were traveling from north to south, and is suspected of drug trafficking for the local market, especially in the Klang Valley.
The suspects are being remanded seven days for investigation under Section 39B of the Dangerous Drugs Act 1952 which carries a mandatory death sentence upon conviction.