The Ecclesiastical High Commission [later called the Court of High Commission or High Court of Ecclesiastical Causes] took over criminal cases formerly heard by the church courts. It also heard matters of domestic morals. It was led by bishops and Privy Council members who in 1559 were authorized by a statute of Parliament to keep order within the church, discipline the clergy, and punish such lay offenses as were included in the ecclesiastical jurisdiction. Obstinate heresy is still a capital crime, but practically the bishops have little power of forcing heretics to stand trial. If anyone maintains papal authority, he forfeits his goods; on a third conviction, he is a traitor. The clergyman who adopts a prayer book other that the prescribed one commits a crime. Excommunication has imprisonment behind it. Elizabeth gave this court the power to fine and imprison, which the former church courts had not had. At first, the chief work was depriving papists of their benefices.

Suits on titles to land were restricted to the common law courts and no longer to be heard in the Star Chamber, Chancery Court, or in the Court of Requests (equity for poor people).

The Queen's Privy Council investigated sedition and treason, security of the regime, major economic offenses, international problems, civil commotion, officials abusing their positions, and persons perverting the course of justice. It frequently issued orders to Justices of the Peace, for instance to investigate riots and crimes, to enforce the statutes against vagrancy and illegal games, to regulate alehouses, to ensure that butchers, innkeepers, and victualers did not sell meat on fish days, and to gather information needed from the counties. The Justices of the Peace decided misdemeanors such as abduction of heiresses, illegal entry, petty thievery, damage to crops, fence-breaking, brawling, personal feuds, drunken pranks, swearing, profanation of the Sabbath, alehouse nuisances, drunkenness, perjury, and malfeasance by officials. They held petty and quarter sessions. The Justices of the Peace had administrative duties in control of vagrancy, upkeep of roads and bridges, and arbitration of lawsuits referred to them by courts. They listed the poor in each parish community, assessed rates for their maintenance, and appointed overseers to administer the welfare system, deploying surplus funds to provide houses of correction for vagrants. Raw materials such as wool, flax, hemp, and iron were bought upon which the able-bodied unemployed could be set to work at the parochial level. They determined wages in their districts, with no statutory ceiling on them, for all laborers, weavers, spinsters, workmen and workwomen working by the day, week, month, or year, or taking any work at any person's hand. There were about 50 Justices of the Peace per county. All were unpaid. They performed these duties for the next 200 years.

The Justices of Assize rode on circuit twice a year to enforce the criminal law and reported their assessment of the work of the Justices of the Peace back to the Privy Council.

The duty to hear and determine felonies was taken from Justices of the Peace by 1590. The Justices of Assize did this work. Accused people could wait for years in gaol before their case was heard. Felonies included breach of prison, hunting by night with painted faces, taking horses to Scotland, stealing of hawks' eggs, stealing cattle, highway robbery, robbing on the sea, robbing houses, letting out of ponds, cutting of purses, deer-stealing at night, conjuring and witchcraft, diminution of coin, counterfeiting of coins, and impenitent roguery and idleness. The penalty was death. Many people were hanged for the felony of theft over 12d. Some bold men accused of felony refused to plead so that they could not be tried and found guilty. They died of heavy weights being placed on their bodies. But then their property could go to their heirs.

The Court of Queen's Bench and Exchequer indirectly expanded their jurisdiction to include suits between citizens, formerly heard only the Court of Common Pleas or Chancery. Chancery interrogated defendants. Chancery often issued injunctions against suits in the common law courts. Trial by combat was very rare.

Pleadings had to be in writing and oral testimony was given by sworn witnesses. Case decisions are in books compiled by various reporters who sit in on court hearings rather than in year books.

In the common law, trespass has given rise to the offshoot branch of "ejectment", which becomes the common means of recovering possession of land, no matter what kind of title the claimant asserts. Trespass on the case has given rise to the offshoot branch of "trover" [finding another's goods and converting them to one's own use]. The use of the action of trover gradually supplants the action of detinue, which involves compurgation.

In the common law courts, the action of assumpsit for enforcing certain promises is used more than the action of debt in those cases where there is a debt based on an agreement. The essential nature of "consideration" in contract is evolving from the procedural requirements for the action of assumpsit. Consideration may consist in mutual promises, a precedent debt, or a detriment incurred by one who has simultaneously received a promise related to the detrimental action. Consideration must be something, an act, or forbearance of an act that is of value. For instance, forbearance to sue a worthless claim is not consideration.

The abstract concept of contract as an agreement between two parties which is supported by consideration is developing as the number of various agreements that are court enforceable expands. For instance the word "consideration" is used in Hayward's Case in 1595 in the Court of Wards on the construction of a deed. Sir Rowland Hayward was seised in fee of the Doddington manor and other lands and tenements, whereof part was in demesne, part in lease for years with rents reserved, and part in copyhold, by indenture, "in consideration of a certain sum of money" paid to him by Richard Warren and others, to whom he demised, granted, bargained and sold the said manor, lands and tenements, and the reversions and remainders of them, with all the rents reserved upon any demise, to have and to hold to them and their assigns, presently after the decease of Sir Rowland, for the term of 17 years. It was held that the grantees could elect to take by bargain and sale or by demise, each of which had different consequences.