裏うらを取とる

expression, godan verb (-ru)

verify; confirm; check the facts

Used when checking the truth of a statement or rumor by gathering evidence or confirming with a reliable source. Often used in journalism, investigation, or everyday fact-checking.

• その情じょう報ほうはまだ裏うらを取とっていないので、記き事じにはできません。

  I haven't verified that information yet, so I can't use it in the article.

• 噂うわさを聞きいたら、必かならず裏うらを取とるようにしている。

  Whenever I hear a rumor, I make sure to confirm it.