Although there are some courts that handle only criminal cases and others that deal with only civil cases, a more common pattern is for a single court to be vested with both civil and criminal jurisdiction. Examples of such courts include the High Court of Justice for England and Wales and many of the trial courts found in U.S. states. Canada is an instructive example, because the federal government has the exclusive authority to legislate criminal laws, while the provinces have the authority to legislate civil laws. Virtually all cases, criminal and civil, originate in the provincial courts. Often these tribunals are called courts of general jurisdiction, which signifies that they can handle almost any type of controversy, though in fact they may not have jurisdiction over certain types of cases assigned to specialized tribunals (e.g., immigration cases). Often such courts are also described as superior courts, because they are empowered to handle serious criminal cases and important civil cases involving large amounts of money. In addition, most high appellate courts (e.g., the U.S. Supreme Court and the courts of last resort in the U.S. states) are courts of general jurisdiction, hearing both civil and criminal appeals.

Even if a court possesses general or very broad jurisdiction, it may nevertheless be organized into specialized branches, one handling criminal cases, another handling civil cases, another handling juvenile cases, and so forth. The advantage of such an arrangement is that judges can be transferred from one type of work to another, and cases do not fail to be heard for having been instituted in the wrong branch, since they can be transferred administratively with relative ease.

Courts of limited jurisdiction

There are many kinds of specialized tribunals, varying from country to country. Some deal only with the administration of the estates of deceased persons (probate courts), some only with disputes between merchants (commercial courts), and some only with disputes between employers and employees (labour courts). Many of the constitutional courts of the democracies that emerged in the 1990s in central and eastern Europe also have limited jurisdiction, confined to disputes grounded in the constitution. Although all these courts are courts of limited jurisdiction, they may exercise substantial power.

Juvenile courts, empowered to deal with misconduct by children and sometimes also with the neglect or maltreatment of children, are a particularly notable court of limited jurisdiction. The procedures of juvenile courts are much more informal than those of adult criminal courts, and the facilities available to them for the pretrial detention of children and for their incarceration, if necessary, after trial are different. Because children are assumed not to be fully capable of rational thought, they are deemed less culpable for their actions, and the emphasis in juvenile courts is therefore usually on saving children, not punishing them. American attitudes are bifurcated on the subject of juvenile law; on the one hand, when minors are victims or can potentially be victimized, law and society typically agree that the purpose of the law is to protect the innocent. This is evident in laws designed to protect minors from exposure to obscene material and from sexual predators and in divorce and custody law. When, however, minors commit a violent act, public and political sentiments often change, and the minor is no longer seen as innocent and deserving of the protection of the law. While some may seek to rehabilitate the youth and desire lenient punishment, others consider a youth of any age who commits a crime as “mature enough to commit the crime, mature enough to be sentenced accordingly.”

Traffic courts also deserve mention because they are so common and affect so many people. They process motor vehicle offenses such as speeding and improper parking. Their procedure is summary and their volume of cases heavy. Contested trials are quite infrequent.

Finally, in most jurisdictions there are institutions called, unfortunately and for want of a better term, “inferior” courts. These are often staffed by part-time judges who are not necessarily trained in the law. They handle minor civil cases involving small sums of money, such as bill collections, and minor criminal cases carrying light penalties. In addition to finally disposing of minor criminal cases, such courts may handle the early phases of more serious criminal cases—including fixing bail, advising defendants of their rights, appointing counsel, and conducting preliminary hearings to determine whether the evidence is sufficient to justify holding defendants for trial in higher “superior” courts.