Police carried out a drugs raid at a home in Stoke Ferry following complaints from local residents.
Officers discovered several cannabis plants and a quantity of cannabis, a class B drug, when they raided the property in Buckenham Drive on Thursday evening.
A 38-year-old woman was arrested at the scene on suspicion of drugs offences and taken to Lynn police station for questioning.
She was later released without charge but issued with a police caution.
Inspector Mark Cant, the local policing commander, said: “This warrant was executed as a result of local intelligence and complaints received from residents.
“This sends a clear message that drug use of any kind will not tolerated. We continue to put pressure on those involved with drugs in and around Downham and residents can be reassured information passed to officers will be acted on.”
Anyone with information on drugs offences, or any other crimes in the area, can contact police on 101.