Illegal immigration

Illegal immigration refers to the movement of people into a country in violation of that nation's specific laws. This can happen through unauthorized entry at a border or by staying after a valid visa expires. This movement is often financially upward, meaning migrants move from poorer nations to wealthier ones. Because they lack legal permission, these individuals may face administrative sanctions, detention, or deportation. However, international laws provide specific protections for certain groups.

International law creates a distinction for those seeking asylum. Under Article 31 of the 1951 Refugee Convention and its 1967 Protocol, asylum seekers are protected. These individuals cannot be penalized solely for irregular entry if they present themselves promptly to authorities. They are permitted to remain in the country while their legal cases are processed. Even if an asylum claim is denied, there may be legal barriers to their expulsion. For example, the European Court of Human Rights has cited risks like torture as reasons to prevent deportation.

Terminology surrounding this subject is a major point of debate. In 2014, the Platform for International Cooperation on Undocumented Migrants launched the "Words Matter" campaign. They encouraged using terms like "undocumented" or "irregular" instead of "illegal." Many news organizations, including the Associated Press and the Press Association, now prefer "undocumented immigrant." They use "illegal" to describe the action of immigration rather than the person. Some critics, like those at Newsweek, argue that "undocumented" can act as a euphemism that changes how people perceive the issue.

Legal definitions vary significantly by country. In the United States, Title 8 of the U.S. Code governs citizenship and immigration. This law uses terms such as "illegal alien," "unauthorized alien," and "undocumented alien." In the U.S., overstaying a visa is a civil violation handled by immigration courts. However, entering the country without approval is a crime, specifically a misdemeanor for a first offense. Re-entering after a deportation is a felony. In Canada, the government often uses the term "irregular" to describe those crossing outside official points of entry.

There are several complex reasons why people migrate irregularly. Poverty is a major driver, often linked to economic crises or natural disasters. For example, the 1994 economic crisis in Mexico led to a massive increase in migration to the U.S. Family reunification is another powerful factor. Research by Douglas Massey shows that the likelihood of illegal migration increases if a person has family members already living in the destination country. Additionally, many people flee gender-based violence, such as forced marriage, or seek to escape civil war and political repression.

Persecution and the loss of citizenship also drive migration flows. In 2012, reports noted that the Rohingya people in Myanmar were stripped of their citizenship in 1982. This rendered them stateless and classified them as illegal immigrants. In other regions, religious persecution is a factor. In 2024, it was noted that 30,000 of the 100,000 refugees resettled in the U.S. were Christians fleeing persecution. These individuals often arrive at borders in desperate situations to avoid death penalties or other violence in their home countries.

Illegal immigration has several social and economic effects. One major effect is the potential for labor exploitation. Because undocumented workers lack legal status, they may be more vulnerable to unsafe working conditions or unpaid wages. This is especially true in the "gig economy" or through subcontractors where law enforcement is rare. On a social level, the status of children is a significant topic. In the U.S., youths brought into the country illegally are still granted access to K-12 public education. This means they are documented for educational purposes even if their residency status is unauthorized.