A DAWN drugs bust resulted in nine arrests and heroin being seized by police.
More than 50 officers executed eight search warrants at properties across Hayle in Operation Calf at 7am on Thursday.
They said they recovered heroin, several items suspected to be stolen property and significant quantities of cash.
Five people have appeared at Truro Magistrates' Court charged with drug-related offences.
Detective Inspector Pete Simms, in charge of the operation, said: "Rising crime and drug activity in the Hayle area was brought to the attention of the neighbourhood team. We have been monitoring the drug activity. We wanted to arrest people, bring them in and put the evidence to them. We have had a good operation."
Operation Calf involved 54 staff from various departments.
Hayle Mayor Jayne Ninnes joined officers to witness the operation being implemented and said it was great that police were taking real action to stamp out drugs in the town.
She said: "Following the raids I was speaking with some residents who described the difficulties they have faced in their areas, such as discarded needles and antisocial behaviour, and how pleased they were that action had been taken.
"It was interesting to see how well the different agencies worked together to ensure that the operation achieved maximum results, for example ensuring support was offered to tackle drug addiction where appropriate."
David Johns, 44, of Golden Sands Caravans, Guildford Road, is accused of four charges of supplying the Class A drug heroin to a police officer and one of supplying diazepam, which is a Class C drug. He also faces charges of being concerned in the supply of heroin, offering to supply it and being in possession of heroin.
Stephen Jose, 39, of The Pathway Fields, is accused of seven charges of supplying heroin to a police officer.
Terrence Foyle, 36, of Rescorla Court, faces three charges of supplying the drug to a police officer.
Paula Matthews, 39, of The Pathway Fields, is accused of two charges of supplying heroin.
Matthew Morris, 39, of Madison Close, faces one allegation of supplying heroin to a police officer.
The allegations relate to dates between December 10 and February 5.
Three other men from Hayle, aged 30, 40 and 41, were released on police bail pending further inquiries in connection with the alleged supply of Class A drugs.
A fourth Hayle man, aged 53, who is suspected of handling stolen goods has been given police bail, pending further inquiries.
All of the defendants – apart from Morris, who was granted unconditional bail – were remanded in custody until a hearing at Truro Crown Court on April 1.