Man 'swallowed heroin' then tried to run away when he was surprised by police Police officers targeted train stations on Merseyside as part of an operation tackling drug dealing across the region and north Wales Updated Officers from Merseyside and North Wales Police joined forces to tackle County Lines drug dealing and child criminal exploitation. A man swallowed a bag of what is thought to have been heroin as he fled officers who surprised him at a train station. The 23-year-old tried to escape after seeing police when he approached Green Lane station in Birkenhead. He was caught and questioned on suspicion of obstructing an officer.