Nine people have been arrested in the latest wave of anti-drugs raids and stop searches in Bangor.
Five were arrested for drugs supply offences on Wednesday, including a 16 year-old, who will be given support and protection from authorities.
Detectives say significant amounts of class A drugs, cash and weapons have been seized over the past few days with the help of officers from the North West organised crime unit and British Transport Police.
On Monday, passengers at the city’s railway station were stopped as part of an operation targeting county lines dealing. Two houses were also raided.
Detective Sergeant Dafydd Curry said: ”The message is clear: this is not a ‘flash in the pan’ operation, we are here to stay.”
”If you come to Gwynedd to deal drugs, we will find you and prosecute you. Consider carefully whether coming here to deal drugs is wise. Our record of identifying and apprehending those who come here to spread their misery suggests you probably won’t be operating here for very long.”