Peter Howieson, 52, was stopped in Blackburn town centre on 24 March 2020 by an officer who planned to search him for suspected drugs.
After seeing Mr Howieson place what he believed to be an illegal substance in his mouth, he attempted to stop him swallowing the item.The officer used force to restrain Mr Howieson, striking him and taking him to the ground before handcuffing him with assistance from two members of the public.A short time later, the man became unresponsive and officers called an ambulance and began CPR.
Mr Howieson was taken to Royal Blackburn Hospital, where he later died.
OPC investigators conducted interviews with the police constable involved, as well as two security guards who witnessed the incident.At an inquest last week, the jury found his death was caused by a combination of natural causes and misadventure. Mr Howieson suffered from a pre-existing condition, a colloid cyst, which was unknown to the officers, that meant a sudden movement could be fatal.Following the ruling, a spokesperson for the IPOC said: “We are now able to report the findings of our investigation, which concluded in March 2021.