The Detective Branch (DB) of Dhaka Metropolitan Police has arrested Additional Superintendent of Police (CID) Md Mosiur Rahman, a close aide to former Barishal Range Additional SP Alep Uddin, who is widely regarded as one of the masterminds behind the enforced disappearances of opposition leaders and activists during the previous regime.

DB Chief Md Shafiqul Islam confirmed the arrest to the media, saying Mosiur Rahman was detained on Thursday afternoon while on duty at the Criminal Investigation Department (CID) headquarters in Dhaka.

Following his arrest, Mosiur Rahman was produced before the International Crimes Tribunal around 3:00pm, where the court ordered that he be sent to jail.

According to case records, Mosiur Rahman is accused in a war crimes-related case at the tribunal that includes charges of abduction and enforced disappearance.

Background of the Case

Investigators said Mosiur Rahman was one of the key associates of Alep Uddin, who gained notoriety for his alleged involvement in extrajudicial killings, abductions, and other unlawful activities while serving with RAB-11.

Alep Uddin was arrested on 12 November last year while attached to the DIG’s office in Barishal Range, following the change of government. He had already been under scrutiny for his controversial role in attempts to suppress the July–August 2024 student-led uprising.

Sources involved in the tribunal’s ongoing investigation said that during his tenure at RAB-11, Mosiur Rahman actively assisted Alep Uddin in conducting abductions and disappearances of opposition activists.

In his witness statement as a state approver, former Inspector General of Police (IGP) Chowdhury Abdullah Al-Mamun reportedly described in detail Alep Uddin’s unlawful operations.

He stated that Alep, then working in the RAB intelligence unit, was often protected by his superiors because of his “efficiency” in carrying out enforced disappearances and similar illegal acts.

Law enforcement sources said these revelations have deepened the tribunal’s focus on tracing the command chain behind the disappearances, marking another major step in holding law enforcement officials accountable for past abuses.