request to arrest a member of parliament while in session
Legal term referring to the procedure under the Japanese Diet Law (Article 33) where the cabinet seeks consent from the relevant house to arrest a member during the session, except in cases of flagrante delicto or serious crimes. Related to the concept of 不逮捕特権 (immunity from arrest).
See also: 不逮捕特権
To arrest a Diet member during a session, the cabinet must submit a request for arrest consent.