In this committee, he showed his ability as 'an expert of law drafting,' and he played an active role as mastermind of drafting the Criminal Law, the Criminal Procedure Law, the Crimnall Law of Japanese Army and Navy, the Draft of Regulations in the Japan Sea, the Medical Affairs Act, and the Pharmaceutical Affairs Act.
ここで彼は「法律起草のエキスパート」としての能力を発揮して、刑法・治罪法・陸海軍刑法・日本海令草案・医事法・薬事法起草の中心人物として活躍する。