共きょう同どう宣せん誓せい供きょう述じゅつ書しょ

noun

joint affidavit

A legal document in which two or more people jointly swear to facts under oath.

• 裁さい判ばん所しょに共きょう同どう宣せん誓せい供きょう述じゅつ書しょを提てい出しゅつした。

  We submitted a joint affidavit to the court.