noun
court of inquiry; court of enquiry
A military tribunal or board convened to investigate specific matters, often used in historical or legal contexts.
その事件は軍人予備裁判所で審理された。
The case was examined by a court of inquiry.
Refers to a court-martial for trying offenses, whereas 軍人予備裁判所 is specifically a court of inquiry for investigation.
Compound of 軍人 (military person), 予備 (reserve/preparatory), and 裁判所 (court). The exact historical derivation is uncertain; the term likely originated in military legal systems.