On 6 June 2020, Islam was detained on allegations of human trafficking and money laundering from Mishref residential area of Kuwait City by Kuwait's CID.[6] Earlier on 27 February, Anti-Corruption Commission of Bangladesh opened an enquiry against Islam who allegedly had amassed Tk 1,400 crore by human trafficking to Kuwait and siphoned off the money to other countries.[7][3] Islam owns a construction company, Marafie Kuwaitia General Contracting Company, in Kuwait.[7][9][10]