〜に照らして
in light of, judged against (a standard)
Noun (法律, 規則, 経験, 常識) + に照らして / に照らせば / に照らすと
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に照らして means judging something by holding it up against a standard: 法律に照らして判断する, "we'll judge it against the law".
The noun is a standard of comparison: laws, rules, past examples, your own experience, common sense. The second half is a judgement or conclusion. With ば or と, it becomes conditional: 規則に照らせば、彼の行為は違反だ, "by the rules, what he did is a violation".
照らす means "to shine a light on", so it's "shining the standard on the case". It's formal and common in legal, business and analytical writing.
Compare に対して (N3), "towards, against a person or thing", and に基づいて (N2), "based on".
Examples
法律に照らして判断する。
We'll judge it against the law.
過去の例に照らして考えると、成功は難しいだろう。
In light of past examples, success looks unlikely.
規則に照らせば、彼の行為は違反だ。
By the rules, what he did is a violation.
自分の経験に照らして、アドバイスをした。
I gave advice in light of my own experience.
常識に照らして考えれば、分かるはずだ。
If you think about it in terms of common sense, you should see it.