They expressed their fears after Home Minister Asaduzzaman Khan Kamal told two private TV channels yesterday that he had received SP Babul's resignation letter and further action will soon be taken on the basis of it.
However, Dhaka Tribune could not confirm the statement independently as neither the Home Ministry or the home minster answered the phone yesterday.
Superintendent of Police (SP) Babul was also unreachable over the phone.
Babul's father-in-law former OC Mosarraf Hossain said that he was glad someone had finally confirmed of the matter.
He said he feared that the criminals Babul chased all his life might get the chance to kill him if he was sent to jail.
OC Mosarraf also urged journalists to help law enforcers find the real killers of his daughter.
SP Babul's wife Mahmuda Khanom Mitu, 32, was brutally stabbed and fatally shot by assailants in GEC intersection area in Chittagong while she was walking her son to his school bus on June 5.
SP Babul filed a case against three unidentified assailants with Panchlaish police station the next day.
On June 25 SP Babul was picked up from his father-in-law’s house by police and kept at the DB office for almost 15 hours.
Amid the media frenzy that ensued, some news outlets published reports saying Babul himself was involved in the murder. Some of these reports were retracted later. Report was also published that on that night SP Babul resigned from his job that was confirmed early yesterday by the minister.