Chapter 2, Section 2 then provides an analysis of the categories of persons whose statelessness or risk of statelessness arose while overseas who subsequently came to Japan.
Category I [Lack of proof]: Persons who cannot establish the nationality of their country of birth or of their parents’ nationality for lack of documentation of the relevant countries due to, for example, chain migration through several generations, who subsequently came to Japan
Category J [State succession II]: Persons whose country of previous nationality has gone through State succession who cannot have their possession of the nationality of the successor State or the predecessor State confirmed, who subsequently came to Japan
Category K [Persons denied nationality under the law of the country of origin]: Persons who cannot acquire nationality under the law of the relevant country, which excludes certain ethnic groups from acquiring nationality, who subsequently came to Japan Chapter 2, Section 3 provides a theoretical analysis of unregistered persons (Category L), persons without a Japanese family register (Category M), and persons registered under the “Chosen/Korean” classification (Category N) as “Other categories of persons” in order to gain understanding of cases potentially at risk of being stateless based on the characteristics of the Japanese family register system and historical background. Chapter 3, Section 1 considers the problems faced by stateless persons in cases where they are recognized as stateless by the Japanese authorities and in cases where they are considered as nationals of some other country. Furthermore, it is made clear that whether or not one possesses a status of residence makes a difference in the types of problems faced. Overall, it is found that stateless persons without a status of residence have more serious troubles than those with a status of residence. The guidelines on special permission to stay by the Immigration Bureau do not list being stateless as one of the positive elements in favor of granting special permission; therefore, there is no guarantee that a status of residence would be granted to a stateless person. There is a risk that they would be 18