[2] Prior to his appointment as IGP, he served as the director general of the Rapid Action Battalion (RAB) from January 2015 to April 2020.

[3] He is currently on a US sanctions list due to RAB's alleged role in forcibly disappearing citizens since December 2021.

[11] On 30 December 2014, Ahmed was appointed director general of the Rapid Action Battalion replacing Mukhlesur Rahman.

[13] In 2022, the Home Ministry issued a notice that the IGP and two other officials were going to Germany on a 9-day visit to check the quality of 100,000 pieces of bed sheet for double cots and pillows for the police department.

[16][17] On 10 December 2021, the U.S. Department of the Treasury added Ahmed to its Specially Designated Nationals (SDN) list under the Global Magnistsky Act.

He also accused human rights organizations of misleading US politicians, specifically referring to one unnamed group whose "South Asia director" was "a Pakistani".

[5] On 31 March 2024, two Bangladeshi newspapers, Bangladesh Pratidin and Kaler Kantho, published an investigative article on alleged corruption by Ahmed.