During the visit a Check the detention registers Relevant information can be obtained by consulting the registers if access is granted, in particular entry and exit registers of detainees if they exist. Consider information on the immigration status (including pending asylum claim or removal orders), the countries of origin and the nationality status of those detained. An assessment can then be made of whether the countries of origin are known to have stateless populations. Particular attention should be brought to those designated under, for example, ‘unknown nationality’, ‘undetermined nationality’ and ‘nationality to be confirmed’ or to those listed under specific designations for particular stateless groups. Based on the detention register(s) or on any other sources, identify: ņņ Persons whose nationality is unclear or disputed. ņņ Persons who claim to be without any nationality. ņņ Persons who are members of a group that is known to be stateless. ņņ Persons who have been in detention for a longer period than the average period of time in this detention facility. ņņ Persons who have been in removal proceedings for a longer period than the average period of time. ņņ Persons who have previously been detained and released, and are now subject to further detention. b Discuss with the authorities25 Where there is no ground for detention, stateless persons should be released. 16 ņņ What groups of persons are detained (asylum-seekers, refugees, irregular migrants outside the asylum system, persons in return proceedings etc.)? 25 Relevant authorities in this context include: management of the detention centers, members of the judiciary, immigration authorities, asylum authorities, authorities in charge of returns etc. STATELESS PERSONS IN DETENTION