The officer-in-charge (OC) of Chakaria Police Station and in-charge of Harbang Police Outpost under Cox's Bazar district have been sued for picking up an expatriate from Chattogram's Patiya upazila and killing him in a shootout after failing to extort Tk 50 lakh from his family. The victim's maternal uncle Ahmed Nabi filed the case yesterday with the court of Patiya Judicial