Roa vs. Collector of Customs, 25 Phil 315 Petitioner-Appellant: Tranquilino Roa Respondent-Appellee: Insular Collector of Customs Facts: Tranquilino, born on July 6, 1889, is the son of a Chinaman and a Filipina legally married in the Philippine Islands at the time of his birth. His mother sent him to China on 1901, just a year after his father died in China, for the sole purpose of studying and with the intention to return to the Philippine Islands. On October 1, 1910, when Tranquilino was 21 years of age, he returned and sought admission to the Philippine Islands but was denied such for he was considered as a Chinese person. Issue: Whether or not Roa is considered a citizen of the Philippines. Held: Yes, Roa is a citizen of the Philippines. Since Philippines at that time was ceded to the United States, the allegiance of native inhabitants was transferred from Spain to US, thus the principle of citizenship of US must be applied in the case at bar since Spanish laws were deemed abrogated. In US, the predominating principle is jus soji or citizenship by place of birth. The rule in US in case of widows was that she ipso facto reacquired the nationality of the country of her birth as she was living and never left that country. The nationality of the appellant having followed that of his mother, he was therefore a citizen of the Philippine Islands on July 1, 1902, and never having expatriated himself, he still remains a citizen of this country. Teotimo Rodriguez Tio Tiam vs. Republic, 101 Phil 195 Petitioner-Appellee: Teotimo Rodriguez Tio Tiam Oppositor-Appellant: Republic of the Philippines Facts: Teotimo was born in Cebu City of Chinese parents and married to a Chinese woman. He also voted in various elections held and had took the oath of allegiance as a citizen of the Philippines. The petitioner showed evidences that rendered him qualified to be a Filipino citizen but the government argued that he was disqualified for having an alleged illicit relation that questions his possession of good moral character, which was not substantially proven. Issue: Whether or not Teotimo should be declared a Filipino citizen. Held: Yes, Teotimo is considered a Filipino citizen through the naturalization law of the country for the evidentiary fact that qualifies him for the acquisition of Philippine citizenship. His right to be entitled to Philippines citizenship cannot be affected by mere hearsay which is rendered incompetent. Petitioner was, then, granted Philippine citizenship subject to the requirements of Republic Act No. 530.