Six people were arrested on suspicion of drugs offences during a police raid in Glossop last week.
Operation Rodrigo, which ran for four days and started last Monday, resulted in two warrants being executed, as well as road patrols.
The first warrant, at a property in Bakewell Gardens, Gamesley, took place on the Monday morning and a 25-year-old man was arrested on suspicion of possessing cannabis, and was later issued with a warning.
The second was carried out at a house in Riverside Close, Glossop, on Thursday morning, when officers found a quantity of suspected class A and class B drugs in the property.
Four people, a 37-year-old woman, a 35-year-old man and two boys aged 15 and 16, were arrested on suspicion of possessing controlled drugs with intent to supply; they have all been bailed pending further enquiries.
Road traffic police stopped and searched a number of vehicles including one in Victoria Street, Glossop, last Tuesday.
A 22-year-old man was arrested on suspicion of possessing a class B drug with intent to supply after white power believed to be MCAT was found on his person and was bailed while enquiries continue.
Inspector Jon Clark, who is in charge of policing in Glossop, said: “Operation Rodrigo aimed to tackle the problem of drugs supply and trafficking in our area.
“The effect drugs have on the community is far-ranging and we want people to call us with any suspicions or concerns they have.”
To speak to police, call 101.