Five people were arrested on suspicion of drugs offences after an incident in Walton.
Officers on patrol suspected a man was drug dealing at the back of Spellow Lane, Walton, at about 4.35pm yesterday (Wednesday).
After detaining him and carrying out a search, they found street deals of drugs believed to be heroin.
Another man was seen making off on foot into a nearby house.
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After further searches, police recovered more than 60 bags of white and brown powder, as well as cash.
A 55-year-old man from Walton, a 52-year-old man from Walton, and a 49-year-old man from Kirkdale were arrested on suspicion of a modern slavery offence and being concerned in the supply of Class A drugs.
Two 17-year-old youths were arrested on suspicion of being concerned in the supply of Class A drugs.
All five were taken into custody for questioning.
Chief Inspector Katie Wilkinson said: "A significant quantity of drugs has been taken out of circulation thanks to the vigilance of officers on proactive patrol.
"Project Medusa – Merseyside Police's dedicated team tackling County Lines - is committed to cutting these lines, and stopping dealers in their tracks.
"This proactive activity will continue day in day out to take the criminals who control these lines off our streets, rid our communities of the harm they bring and protect vulnerable drug users.
"Those criminals controlling county lines think nothing of exploiting young and vulnerable people, who they get to do their dirty work while counting the proceeds of their illegal trade.
"But we have devoted significant resources to stopping them and I hope these arrests send a clear message to others involved in this type of criminality that we will take action and you will be arrested and put before the courts."
Chief Insp Wilkinson added: “Our officers were in the area after receiving information that drug dealing may have been happening in the area. These arrests and seizures show yet again that when the public tell us about crime in their communities, we will take action."
You can report any concerns to police via 101, via Twitter @MerPolCC or Crimestoppers anonymously, on 0800 555 111 or via their online form here.
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