[3] Rahman was suspended during the Bangladesh Nationalist Party government rule for refusing to disperse a peaceful rally of then opposition Awami League when he was a deputy commissioner of Dhaka Metropolitan Police.
[3] He was transferred to the Special Branch Training School and then returned to Bangladesh Police Academy.
[4][3] In December 2007, Rahman was transferred from the post of commissioner of Khulna Metropolitan Police to National Security Intelligence as its director.
[7] Rashid Ahmed, and his wife, had been jailed on allegations of bring fake Indian currency from Bangladesh in 2004.
[7][10] Rahman, then deputy inspector general, was transferred to Counter Terrorism Unit of Bangladesh Police in April 2013.
[15] He attended a program at the police academy addressed by High Court Division Justice Syed Refaat Ahmed.