When the US government discovers that a person has entered the United States illegally, has remained in the country beyond the expiration date of his visa or has committed any other violation of U.S. immigration or criminal laws, he will probably initiate the process. judicial repatriation of said person. The process is not simple. Before being able to deport a non-citizen, the government must prove that deportation is necessary. This means that a non-citizen has the opportunity to argue that he should be allowed to stay, but he cannot do so effectively if he does not know in depth the deportation process. This section provides a summary of the repatriation and discusses the consequences of re-entering the United States after the repatriation.