 "Lex soli" is a law used in practice to regulate who and under what circumstances an individual can assert the right of "jus soli".Most states provide a specific "lex soli—"in application of the respective "jus soli—"and it is the most common means of acquiring nationality.However, a frequent exception to "lex soli" is imposed when a child is born to a parent in the diplomatic or consular service of another state on a mission to the state in question.