"Ecclesiastical" courts were created for bishops to preside over cases concerning the cure of souls and criminal cases, in which the ordeal was used. When the Conquerer did not preside over this court, an appeal could be made to him.
The hundred and county courts now sat without clergy and handled only "civil" cases. They were conducted by the King's own appointed sheriff. Only freemen and not bound villeins had standing in this court. They continued to transact their business in the English language.
The local jurisdictions of thegns who had grants of sac and soke or who exercised judicial functions among their free neighbors were now called "manors" under their new owners, who conducted a manor court.
The Conquerer's Royal Court was called the "Curia Regis". When the Conquerer wished to determine the national laws, he summoned twelve elected representatives of each county to declare on oath the ancient lawful customs and law as they existed in the time of the popular King Edward the Confessor. The recording of this law was begun. A person could spend months trying to catch up with the Royal Court to present a case. Sometimes the Conquerer sent the justiciar or commissioners to hold his Royal Court in the various districts. The commissioner appointed groups of local men to give a collective verdict upon oath for each trial he conducted. The Conquerer allowed, on an ad hoc basis, certain high-level people such as bishops and abbots and those who made a large payment, to have land disputes decided by an inquiry of recognitors. Besides royal issues, the Curia Regis heard appeals from lower court decisions. It used English, Norman, feudal, Roman, and canon law legal principles to reach a decision, and was flexible and expeditious.
A dispute between a Norman and an English man over land or a criminal act could be decided by trial by combat [battle]. Each combatant first swore to the truth of his cause and undertook to prove by his body the truth of his cause by making the other surrender by crying "craven" [craving forgiveness]. The combatants used weapons like pickaxes and shields. Presumably the man in the wrong would not fight as well because he was burdened with a guilty conscience. Although this trial was thought to reflect God's will, it favored the physically fit and adept person. After losing the trial by combat, the guilty person would be punished appropriately.
London had its own traditions. All London citizens met at its folkmote, which was held three times a year to determine its public officers, to raise matters of public concern, and to make ordinances. Its criminal court had the power of outlawry as did the county courts. Trade, land, and other civil issues were dealt with by the Hustings Court, which met every Monday in the Guildhall. The city was divided into wards, each of which was under the charge of an elected alderman [elder man]. (The election was by a small governing body and the most wealthy and reputable men and not a popular election.) The aldermen had special knowledge of the law and a duty to declare it at the Hustings Court. Each alderman also conducted wardmotes in his ward and decided criminal and civil issues between its residents. Within the wards were the guilds of the city.
The Normans, as foreigners, were protected by the king's peace. The entire hundred was the ultimate surety for murder and would have to pay a "murdrum" fine of 31 pounds [46 marks] for the murder of any Norman, if the murderer was not apprehended by his lord within a few days. The reaction to this was that the murderer mutilated the corpse to make identification of ethnicity impossible. So the Conquerer ordered that every murder victim was assumed to be Norman unless proven English. This began a court custom in murder cases of first proving the victim to be English.
The Royal Court decided this case: "At length both parties were summoned before the King's court, in which there sat many of the nobles of the land of whom Geoffrey, bishop of Coutances, was delegated by the King's authority as judge of the dispute, with Ranulf the Vicomte, Neel, son of Neel, Robert de Usepont, and many other capable judges who diligently and fully examined the origin of the dispute, and delivered judgment that the mill ought to belong to St. Michael and his monks forever. The most victorious King William approved and confirmed this decision."