LANDAU, LEIB (1879–1944), Polish advocate. Born in Kirov, Russia, Landau qualified as lawyer and rapidly established himself as an authority on criminal procedure. He was defense counsel in a number of famous political trials and represented Jews in legal actions following antisemitic outbreaks. Landau was head of the Przemysl Jewish community and was an active protagonist of Yiddish literature. He was murdered by the Nazis in the Lvov ghetto.