Earlier, ACC directed the Md Shajahan and his wife Ferdousi Akter to file separate statements of assets.
Md Shahjahan joined Lohagara police station on 12 June 2012 as OC. There he was accused of various irregularities including abuse of power, illegal arrests and acquisition of assets. He was later transferred to Swandip over the allegations. Similar allegations were raised against him in Swandip too.
In February 2018, ACC Chattogram-2 started an investigation based on a complaint lodged by a person named Harun at the ACC head office in Lohagara.