They're all Nigerian nationals. Under the guise of various jobs they obtain visas to enter Bangladesh. After arriving here, they destroy their passports and hide their identities. They run scams and con people. Many Bangladeshi criminals are involved in their scams as well.

The Department of Narcotics Control (DNC) arrests a Nigerian national with a new type of drug known as “Crystal Meth or Ice” in his possession from Dhaka’s Khilkhet.