M marginalisation, 11 marriage, 18, 92 - certificate, 84 - to a foreigner, 55 material elements, 107 medical, see also healthcare - certificates/records, 84 membership - of a religious, linguistic or ethnic group, 52 migrants, 111 migratory - context, individuals in a, 12, 58, 108, 117, 144-163 - movements, mixed 10 - situations, 1 military service record, 84 Montevideo Convention on Rights and Duties of States (1933), 19 N national law, 135, 140, 164 nationality - acquisition/reacquisition of, 44, 117, 155, 156, 159-161 - acquired in error or bad faith, 45, 46 - automatic and non-automatic modes of acquisition or withdrawal of, 25, 26, 31-37 - concept of, 52-56 - deprivation of, 25, 50, 55, 158-160 -arbitrary, 164 - laws, 1, 23, 24, 29, 52, 61, 83, 86, 102, 116, 149, 158, 164 - loss of, 44, 51, 55, 158-160 - renunciation of, 25, 50, see also voluntary renunciation - right of option to acquire, 155 - right to a, 58-61, 161 - withdrawal of, 44, 51, 55, 56 - voluntary renunciation of, see voluntary renunciation - acquired in error or bad faith, 45 - verification procedures, 60, 61 naturalization, certificate of, 84 non-citizenship, 33, 137, see also citizenship INDEX non-refoulement, 127, 128 non-State actors, 86 P parentage, proof of, 35 passport, 38, 40, 42, 44, 57, 95-99, 155, see also evidence penalties for illegal entry, 127 persecution, well-founded fear of, 52, 57, 81, 91, 96 prima facie, statelessness status, 109, 110 99