Ruhul Islam is a retired Justice of the Appellate Division of the Bangladesh Supreme Court.
He served in that position till 1977, when the courts were merged into one again by martial law order.
[3] On 30 December 1978 during martial law, Chief Justice Kemaluddin Hossain, Justices Fazle Munim, Ruhul Islam, and KM Subhan issued a verdict declaring martial law tribunal verdicts cannot be challenged in any courts with justice Subhan dissenting.
[4] On 3 March 1979, Ruhul Islam was removed from the Supreme Court by General Ziaur Rahman along with Justices Abdul Mumit Chowdhury, Ahsan Uddin Chowdhury, Debesh Bhattacharya, Siddique Ahmed Chowdhury, and Syed A B Mahmud Husain.
[5] In 1981, Ruhul Islam led the investigation into the murder of General Muhammed Abul Manzur who had accused of being involved in the assassination of Ziaur Rahman, President of Bangladesh.