Ukraine and International Law: The Double Standard at the New York Times Editorial Page
"A dirty dog will not have justice by the court."
I did not invent these words, although I wish I had. The honor belongs to the British satirist and legal commentator, A.P. Herbert, as spoken by his fictional Judge Mildew. The idea, in general, is that one shouldn't accuse another of a crime committed by oneself as a means of exoneration - and get away with it.