Four men and a woman were arrested by drugs squad officers in a planned raid on a house.
Police swooped on the home in the Hazelbank Road area of Coleraine yesterday evening.
A quantity of cannabis was recovered and a 36-year-old man has been charged with possession of a Class C drug.
He is expected to appear at Coleraine Magistrates Court on Monday morning. Detectives were continuing to question the other four people.