Sometimes a person goes to a new place. They may have done something wrong. A country can ask for that person to come back. This helps everyone follow the rules. It is a way to be fair. 
Sometimes people move to a new land. They might have broken a rule in their old home. One land can ask another land to send them back. This is called extradition. 
Countries often make special deals to help with this. These deals are called treaties. They help lands work together.
A person must have broken a rule in both lands. This makes things fair for everyone. 
Some lands say no to these requests. They might say no if the person is being punished for their ideas. They also say no to keep people safe.
This helps make sure everyone gets a fair trial. It is a way to follow the law.
Extradition is a formal way for countries to work together. If a person is accused of a crime, they may flee to a new land. The first country can ask the new land to send them back. This is called extradition.
This process is very old. Long ago, a leader named Ramesses II made a deal with a king named Hattusili III. They made a treaty, which is a formal agreement. Most countries use treaties to decide how to handle these cases. 
There are different types of deals. Some use a list of specific crimes. Others use a rule called dual criminality. This means the act must be a crime in both lands. 
Sometimes, a country will say no to a request. They might say no if the crime was about politics. They may also say no to protect human rights. For example, some lands will not send a person if they might face the death penalty. They want to make sure everyone gets a fair trial.
Extradition is a formal legal way for different lands to work together. When a person is accused of a crime, they might move to a new country. The first country can then ask the new country to send that person back. This helps the person face trial or punishment where the crime happened. This process involves a physical transfer of the person to the new legal authority. It is a cooperative way for law enforcement to handle people who flee.
How this process works depends on many rules and agreements. One common way is through a list treaty. This treaty has a specific list of crimes that allow for extradition. Another way is called dual criminality. This rule says the act must be a crime in both countries. Usually, the crime must have a punishment of more than one year in prison. Both countries must also agree that the person will get a fair trial. 
This method of working together is very ancient. It dates back to at least the 13th century BCE. An Egyptian pharaoh named Ramesses II made a treaty with a Hittite king named Hattusili III. This was one of the earliest known extradition agreements in history. Today, most countries use treaties to regulate these requests. However, no country has a treaty with every other country in the world. For example, the United States does not have treaties with China or Russia. 
There are many rules that can stop an extradition request. Many countries will say no if the crime is political. They do not want to get involved in the politics of other lands. Some nations, like Canada or Mexico, may refuse if the person faces the death penalty. They want to be sure the person is treated fairly. The European Court of Human Rights even ruled on this in the case of Soering v. United Kingdom. They said sending someone to face harsh conditions on death row was not right. 
Different parts of the world have their own special rules. In the European Union, many nations use the European Arrest Warrant. This warrant was used by eight states in 2004 and all member states by 2005. It makes the process faster for certain crimes. Some countries, like France or Japan, have laws against sending their own citizens away. They prefer to try those citizens in their own courts instead. This ensures the person stays under their home country's legal system. 
Extradition is a formal legal process used between different jurisdictions. A jurisdiction is a territory with its own legal authority, such as a country or a state. In this process, one jurisdiction surrenders a person to another. This person is usually accused of a crime or has already been convicted. The goal is to bring the individual to the place where the crime occurred. This allows for proper prosecution or the carrying out of a punishment. Extradition is a cooperative procedure between law enforcement agencies. It involves both legal steps and the physical transfer of the person.
The mechanism of extradition relies on specific requests and legal frameworks. One sovereign jurisdiction makes a formal request to another, known as the requested state. If a fugitive is found within the territory of that requested state, the state may arrest them. The specific procedures used depend on the laws of the requested state. Between different countries, these rules are normally regulated by treaties. When the process happens between sub-national jurisdictions, it is sometimes called rendition. Without a treaty, a state might still request a person's return. They can do this using domestic laws, such as immigration laws. 
There are two main types of extradition treaties used globally. The first is the list treaty, which is the most traditional type. This treaty contains a specific list of crimes that allow for extradition. The second type is the dual criminality treaty. Under dual criminality, a person can be extradited if the act is a crime in both countries. Usually, the punishment for the crime must be more than one year of imprisonment. In both types of treaties, the conduct must be a crime in both jurisdictions. If the act is legal in one country, it is not an extraditable offense.
For an extradition request to be successful, several conditions must generally be met. The requesting country must show that the crime is sufficiently serious. They must also present a prima facie case against the individual. This means there is enough evidence to support the accusation. The event must qualify as a crime in both involved countries. Additionally, the person must be able to expect a fair trial in the receiving country. Finally, the likely penalty must be proportionate to the crime committed. These requirements ensure that the legal process remains fair and consistent. 
Extradition is an ancient practice with a very long history. It dates back at least to the 13th century BCE. During this time, an Egyptian pharaoh named Ramesses II negotiated a treaty. He made this agreement with a Hittite king named Hattusili III. Today, the web of treaties is much larger, but no country has a treaty with everyone. For example, the United States lacks extradition treaties with several nations. These include China, Russia, Namibia, and North Korea. It also lacks treaties with the United Arab Emirates and Bahrain. 
Many countries place specific restrictions on when they will grant extradition. Most nations will deny a request if the crime is considered political. This prevents the process from being used for political purposes. Many nations, such as Canada, Mexico, and most European countries, also have rules about the death penalty. They may refuse extradition unless they are assured the death sentence will not be carried out. In the case of Soering v. United Kingdom, the European Court of Human Rights intervened. They ruled that extraditing a person to face harsh conditions on death row was a violation of human rights. 
Different legal structures can also change how extradition works. In federal systems like the United States, power is split between levels. Most criminal cases happen at the state level. However, foreign relations are handled at the federal level. Because of this, a US state cannot make its own treaties with foreign countries. A state must ask the federal government to negotiate the request. This can create complex situations regarding legal assurances. For instance, the federal government might promise no death penalty, but that is not always binding on individual states. This complexity was seen in the case involving the Commonwealth of Virginia and the United Kingdom.
Finally, some countries have specific rules regarding their own citizens. Nations like France, Austria, China, and Japan have laws against extraditing their citizens. Other countries, such as Germany, Israel, and the Russian Federation, forbid it in their constitutions. If a citizen commits a crime abroad and returns home, they are not sent away. Instead, these countries try the person under their own domestic laws. They treat the crime as if it happened within their own borders. This ensures the citizen remains under their home country's legal system and protections.
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