To deal with accusations or wrongdoing, one must have conclusive evidence or direct proof. It emphasizes the importance of facts and evidence in resolving disputes.
在处理这类纠纷时，我们一定要坚持“捉贼捉赃，捉奸捉双”的原则，不能凭空猜测，要有确凿的证据。
When handling such disputes, we must adhere to the principle of "catch a thief with the loot, catch an adulterer with the pair," and not make wild guesses; there must be conclusive evidence.
Next Idiom