expression, godan verb (-tsu)
have an excuse; be able to make an excuse
Used when someone can produce a plausible excuse or justification for a situation. Often appears in negative forms like 言い訳が立たない (no excuse can be made).
遅刻の理由を聞かれて、彼は言い訳が立たなかった。
When asked for the reason for being late, he couldn't come up with an excuse.
あれだけ
With that much evidence, there's probably no excuse left to make.