Turkey's purge of the judiciary and police has brought a corruption investigation shaking the government to a grinding halt and could undermine confidence in state institutions, senior legal figures and the opposition said on Wednesday. Ninety-six judges and prosecutors were reassigned overnight, the biggest purge of the judiciary since a graft scandal erupted on December 17 with the arrest of businessmen close to Prime Minister Tayyip Erdogan and three ministers' sons. Erdogan has portrayed the corruption inquiry as an attempted "judicial coup" orchestrated by U.S.-based cleric Fethullah Gulen, whose network of sympathizers, known locally as "Cemaat" (religious community), hold considerable...