The king was originally responsible for law and justice but delegated local administration to those living near crimes. After the Norman Conquest, nobles administered justice by blending Norman and Saxon laws, with freedom to rule their lands. Serious crimes went to the King's courts. Henry I deemed all crimes a breaking of the king's peace, tried uniformly by traveling judges handling crimes and property disputes. These early judges lacked formal training but relied on common sense. By the late 12th century, judges had real legal knowledge and common law was established nationwide, administered by juries guided by lawyers who replaced trials by battle or ordeal.