An unauthorised arrival is a person who has arrived in a country

Country

A country is a region legally identified as a distinct entity in political geography. A country may be an independent sovereign state or one that is occupied by another state, as a non-sovereign or formerly sovereign political division, or a geographic region associated with a previously...

 when they are not a citizen of that country and does not have a valid visa

Visa (document)

A visa is a document showing that a person is authorized to enter the territory for which it was issued, subject to permission of an immigration official at the time of actual entry. The authorization may be a document, but more commonly it is a stamp endorsed in the applicant's passport...

 or does not satisfy other required conditions for entry to that country.

A person may be described as an unauthorised arrival when they have crossed a national border with the intention of applying for refugee

Refugee

A refugee is a person who outside her country of origin or habitual residence because she has suffered persecution on account of race, religion, nationality, political opinion, or because she is a member of a persecuted 'social group'. Such a person may be referred to as an 'asylum seeker' until...

 status, making them an asylum seeker. If a person enters a country without authorisation intending to live and work in that country, then they may be, or may become, an illegal immigrant

Illegal immigration

Illegal immigration is the migration into a nation in violation of the immigration laws of that jurisdiction. Illegal immigration raises many political, economical and social issues and has become a source of major controversy in developed countries and the more successful developing countries.In...

.

Under the United Nations

United Nations

The United Nations is an international organization whose stated aims are facilitating cooperation in international law, international security, economic development, social progress, human rights, and achievement of world peace...

 Convention Relating to the Status of Refugees

Convention Relating to the Status of Refugees

The United Nations Convention Relating to the Status of Refugees is an international convention that defines who is a refugee, and sets out the rights of individuals who are granted asylum and the responsibilities of nations that grant asylum. The Convention also sets out which people do not...

, a person has the right to cross national borders if they are seeking asylum from political repression

Political repression

Political repression is the persecution of an individual or group for political reasons, particularly for the purpose of restricting or preventing their ability to take political life of society....

 or various other forms of persecution.

See also

• Illegal entry
  Illegal entry
  Illegal entry is the act of foreign nationals arriving in or crossing the borders into a country in violation of its immigration law.Migrants from nations that do not have automatic visa agreements, or who would not otherwise qualify for a visa, often cross the borders illegally in some areas like...
  
  
• Asylum shopping
  Asylum shopping
  Asylum shopping is a practice by asylum seekers of applying for asylum in several states or seeking to apply in a particular state after transiting other states. The term is used mostly in the context of the European Union and the Schengen area, but has been used by the Federal Court of Canada...
  
  
• Mandatory detention
• Refugee law
  Refugee law
  Refugee law is the branch of international law which deals with the rights and protection of refugees. It is related to, but distinct from, international human rights law and international humanitarian law, which deal respectively with human rights in general, and the conduct of war in...
  
  
• Right of asylum
  Right of asylum
  Right of asylum is an ancient juridical notion, under which a person persecuted for political opinions or religious beliefs in his or her own country may be protected by another sovereign authority, a foreign country, or church sanctuaries...