There are different kinds of laws, like administrative law, civil law, common law, applicable law, etc. Administrative law, or law that is used to govern people, is defined as a set of rules or norms of conduct which forbid authorization or permit specified relationships among people and organizations, provide methods for ensuring the impartial treatment of such people, and provide punishments for those who do not follow the established rules of conduct.

The law in Pennsylvania is typically administered through a system of courts where the judges hear disputes of both parties. In order to provide a judgment that is just and fair they apply a set of rules. The manner of administering law is called the legal system, which has developed through tradition in each country.

The legal system or the administrative law differs in each country. Like all American states, Pennsylvania has a government ruled under law. This government is separated into executive, legislative and judiciary branches. The legislature is an officially elected body of people with the responsibility to make laws for a political unit such as a state or nation. The executive branch gets more access than the private parties to closed-door legislative negotiations.

Without the fear of public scrutiny, administration officials can wield the threat of a presidential veto. Since 1790, Pennsylvania has had a two-chambered legislature, with a General Assembly that consists of a Senate with 50 members and a House of Representatives with 203 members.

Pennsylvania's entire judicial system is under the supervision of the Supreme Court of Pennsylvania, which is also the final appellate court for both the Superior Court and the Commonwealth Court. It also hears appeals directly from the Courts of Common Pleas in certain cases, including murder convictions in which the death penalty applies. These bodies help the Pennsylvanian government to carry on their duties based on the laws and statutes.