[3] Islam was born on 30 October 1962 at Alamdanga in Chuadanga District of the then East Pakistan (now Bangladesh).

[2] He joined Bangladesh Police force on 20 December 1987 through 8th BCS Examination.

[6][7] In 2015, he was transferred from commissioner of Chittagong Metropolitan Police to the deputy inspector general of Telecommunication & Information Management.

[11][12] In October 2021, his term at the Dhaka Metropolitan Police was extended by one year.

[13] He reported to the media that some citizens of Bangladesh had gone to Afghanistan to join the Taliban.