Police discovered more than 400 suspected cannabis plants after executing a warrant at a house near Mansfield on Thursday morning (9th May).
Officers found plants in two rooms, the loft and cupboards at a house on Recreation View, Langwith Junction.
In total, more than 400 suspected cannabis plants were seized along with a range of equipment.
A 34-year-old man was arrested at the scene on suspicion of production of a class B substance (cannabis).
The arrest coincides with a campaign being run by Derbyshire Constabulary to encourage members of the public to report houses and flats that they suspect have been turned into cannabis farms.
Signs people are being urged to be on the lookout for include:
A strong and sickly sweet smell that may be covered up with creosote or paint;
Cannabis growing equipment such as lights, fertiliser and cables being moved into or out of a property;
Constantly covered or blocked off windows at the front and rear of a property;
Visitors at unsocial hours and few sightings of the occupants of the house;
Strong and constant lighting throughout the day and night;
High levels of heat and condensation, visible on the windows;
The constant buzz of ventilation.
If you want to speak to a police officer confidentially, call Derbyshire police on 101. You can also call Crimestoppers, anonymously, on 0800 555 111.