労働農民党
After the Labour-Farmer Party had been banned, the government attempted to expel its representatives from the Lower House of the Diet of Japan. However they lacked any legal basis to do so, and the two Labour-Farmer Party continued in their parliamentary functions. Yamamoto Senji was assassinated on February 29, on the same day as he had presented testified in the Diet regarding torture of prisoners. On 8 February 1929, Senji Yamamoto, who was a Labour-Farmer Party candidate for Kyoto at the first general election under universal suffrage held in February 1928, spoke in the Imperial Diet, inquiring about the torture and illegal detention of prisoners by the police, who had boasted of being the "Amakasu of Showa". He was preparing his speech for the Diet in February, but was killed by a right-wing assassin at an inn in the Kanda district of Tokyo.