The United States government has outlined three key immigration violations that could result in the deportation of Nigerians and other foreign nationals residing in the country. The guidance, published by US authorities, explains that deportation is the legal process by which a non-citizen is removed from the United States for breaching immigration law. US government guidance details immigration violations leading to deportation for foreign nationals. Three grounds for deportationAccording to the US guidance, the first ground for deportation is involvement in criminal activity. Foreign nationals who participate in criminal acts may be detained and subsequently removed from the country under US immigration law.