Khairul Alam became a lawyer of the District Courts on 3 March 1997 and the High Court Division on 30 October 1997. In December, Khairul Alam and Justice ABM Hassan cleared the way for 25
Bangladesh Jamaat-e-Islami politicians to stand for the
2018 Bangladeshi general election. Khairul Alam and Justice ABM Hassan issued a stay order on the candidacy of
Tahsina Rushdir Luna, wife of
Ilias Ali, and
M. Rashiduzzaman Millat of the
Bangladesh Nationalist Party following a petitions by the
Awami League candidate and
Jatiya Party candidate. Luna as a retired civil servant needed to wait three years before standing for election and Millat was previously convicted in a corruption case. In July 2019, Khairul Alam and Justice JBM Hassan ordered Dhaka Water Supply and Sewerage Authority to provide safe drinking water. On 30 May 2020, Khairul Alam was made a permanent judge of the High Court Division by President
Mohammad Abdul Hamid. In August 2020, Khairul Alam and Justice
JBM Hassan rejected a petition calling for action against two police officers, Superintendents of Police Mostafijur Rahman and Mohammad Mizanur Rahman Shelley, who had posted negative comments on Facebook against a witness in the
Murder of Major Sinha Mohammed Rashed Khan case on a technicality. In September, Khairul Alam and Justice JBM Hassan issued a six months stay order on the government order cancelling the freedom fighter status of 120 personnel of
Bangladesh Air Force and
Bangladesh Rifles out of nearly 1200 whose status was cancelled on the grounds of using forged documents to obtain freedom fighter status. In February 2023, Khairul Alam and Justice
Naima Haider issued a verdict declaring educational institutions cannot compel students to disclose their marital status in the admission forms. ==References==