The Chancery came to have a separate and independent equitable jurisdiction. It heard petitions of misconduct of government officials or of powerful oppressors, fraud, accident, abuse of trust, wardship of infants, dower, and rent charges. Because the common law and its procedures had become technical and rigid, the Chancery was given equity jurisdiction by statute in 1285. King Edward III proclaimed that petitions for remedies that the common law didn't cover be addressed to the Chancellor, who was not bound by established law, but could do equity. In Chancery, if there is a case that is similar to a case for which there is a writ, but is not in technical conformity with the requirements of the common law for a remedy, then a new writ may be made for that case by the Chancellor. These were called "actions on the case". Also, Parliament may create new remedies. There were so many cases that were similar to a case with no remedy specified in the common law, that litigants were flowing into the Chancery. The Chancellor gave swift and equitable relief, which was summary. With the backing of the council, the Chancellor made decisions implementing the policy of the Statute of Laborers. Most of these concerned occupational competency, for instance negligent activity of carriers, builders, shepherds, doctors, cloth workers, smiths, innkeepers, and gaolers. For instance, the common law action of detinue could force return of cloth bailed for fulling or sheep bailed for pasturing, but could not address damages due to faulty work. The Chancellor addressed issues of loss of wool, dead lambs, and damaged sheep, as well as dead sheep. He imposed a legal duty on innkeepers to prevent injury or damage to a patron or his goods from third parties. A dog bite or other damage by a dog known by its owner to be vicious was made a more serious offense than general damage by any dog. A person starting a fire was given a duty to prevent the fire from damaging property of others. The King will fine instead of seize the land of his tenants who sell or alienate their land, such fine to be determined by the Chancellor by due process. Only barons who were peers of the House of Lords were entitled to trial in the House of Lords. In practice, however, this pertained only to major crimes. Treason was tried by the lords in Parliament, by bill of "attainder". It was often used for political purposes. Most attainders were reversed as a term of peace made between competing factions.