A police officer sniffed out a £300,000 cannabis farm - next to a Conservative Club.
PCSO Steve Taylor was walking past a packed Cons club venue when he smelt the strong smell.
A court heard the suspicious policeman went into the outbuilding next to the club the next day with a drugs warrant - and found 600 plants.
Police arrested Thanh Le, 22, and Tom Wang, 41, inside the buildings at Hirwuan, near Aberdare.
Merthyr Tydfil Crown Court heard how Chinese national Wang came to the UK illegally 10 years ago how Le, originally from central Vietnam, borrowed $28,000 from his family so he could travel to Britain.
Both men pleaded guilty to one charge of cultivation of cannabis. Each was jailed for 20 months.