He was sentenced to six months' imprisonment for keeping the walkie-talkies illegally and another six months for possessing illegal liquor on October 26, 2020 by a mobile court led by Rapid Action Battalion (Rab).
Two firearms, 38 walkie-talkies and liquor were seized from the house during the drive. Rab detained Irfan from his father’s residence on Devdas Lane in Old Dhaka on October 26 on charge of "attacking" Lieutenant Wasif Ahmed Khan of Bangladesh Navy.
Before that, Lt Wasif filed a case with Dhanmondi Police Station naming four people including Irfan and several unnamed accused.
The three other accused are -- AB Siddique Dipu, 45, Md Zahid, 35, and Md Mizanur Rahman, 30.
According to the case statement, a private car hit Lt Wasif's motorcycle near Labaid Hospital at Dhanmondi around 7:45pm when he and his wife were returning to their Mohammadpur residence from Nilkhet.