He was subjected to harsh interrogations directly from the chief, Isami KONDO, and the vice-chief Toshizo HIJIKATA in a storehouse of the Maekawa residence, Mibu Tamurojo post, which still exists today.
今も現存する壬生屯所前川邸の蔵で、局長近藤勇、副長土方歳三から直々に厳しい取調べを受けた。