They made a hidden chamber on top of the cab of a lorry, concealed a large consignment of yaba inside it, welded them shut and painted over it so that it would not raise suspicion.

In the port city, there are over 300 spots where peddlers have been selling drugs, including yaba, for years dodging the law enforcers, according to Chittagong Metropolitan Police (CMP) officials.

The trade of illegal drug Yaba is booming in the capital under political patronisation. A section of policemen, who are supposed to clamp down on Yaba traders, are also working as the patrons, according to police findings.