A man has admitted growing what police described as the strongest cannabis ever found in the UK.
David Wyler admitted producing and possessing cannabis
David Wyler, 55, of Poplar Avenue, Nottingham, admitted producing cannabis and possessing the drug as well as possessing amphetamines.
Tests on 500 cannabis plants seized at a house in Ilkeston, Derbyshire, showed they were the strongest ever found in the UK, Derby Crown Court was told.
Police believe he made £500,000 out of drugs. Wyler will be sentenced later.
The house in Ilkeston was entirely given over to producing cannabis plants, the hearing was told.
Test carried out by forensic scientists on the plants showed the THC content, a measure of the drug's strength, was 29%. The normal reading for cannabis is 12%.
Police seized £30,000, which was in the possession of Wyler, along with three cars.