YOKOHAMA — Two men have been arrested in a bribery case involving the alleged exchange of 1 million yen to ensure a racehorse enthusiast would be admitted to a school for trainers, police said Jan. 15.On Jan. 14, the Kanagawa Prefectural Police arrested Sakae Nishiuchi, 57, a former official of a horse-race union running the Oi Racetracks in Shinagawa Ward in Tokyo. The union also runs a school for trainers.Investigative sources said Nishiuchi was an admissions officer at the trainers’ school in September 1995 when Mitsuaki Sawada, 42, approached him in 1995 regarding admission to the school. Nishiuchi allegedly recommended Sawada for admission to the school’s officials and received 1 million yen from him the next month. Sawada was admitted and later became a horse trainer.Sawada reportedly told police that he had already failed the horse trainer’s qualification exams several times. He said he thought that entering the training school would help him pass.After Nishiuchi was questioned by the Kanagawa Prefectural Police over his dubious behavior, union sources said he was fired by the union in September 1995.