in light of; in view of; according to
Used to express that a judgment, decision, or action is based on a standard, rule, fact, or situation. Often follows nouns like 事実, 法律, 規則, 状況.
See also: に照らすと
We need to judge in light of the facts.
In view of the law, that act was deemed illegal.
に基づいて means 'based on' and is more concrete, often used with data or evidence. に照らして implies a more evaluative comparison against a standard.
From the verb 照らす (to shine on, to compare) in its て-form, combined with the particle に. The expression literally means 'shining a light on something' and metaphorically extends to 'in light of' or 'in comparison with'.