From Longman Dictionary of Contemporary Englishafter the factafter the factAFTERafter something has happened or been done, especially after a mistake has been made → fact
Examples from the Corpus
after the fact• Then they acquitted Broadus of being an accessory after the fact.• The jury also acquitted the rapper, whose real name is Calvin Broadus, of being an accessory after the fact.• To make such decisions after the fact can be costly-even fatal.• But solving the problem is not so simple, especially after the fact.• Even after the fact, their violent behaviour just did not make sense.• Explanations after the facts are of course very useful but the hallmark of a successful research programme is predictions.• For the field man who deals with real problems, paper work is incidental, after the fact.• Few people even heard about the concert until after the fact.• Will I follow you down the street a hundred years after the fact? 