Quote:
Originally Posted by sohbuckkong
Without being linked or shared, then theres no way spore could know who is that foreigner. With this, then its v obvious spore ICA is just checking for fake passports and bad records from its own database and those from interpol. I doubt spore is keen to know whether a foreigner hold single or multiple citizenship.
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Passport data of arrivals and departures is never shared among countries. However, airlines will share the passengers data as required by aviation law. Leave by passport A and enter by passport B without being noticed is only possible through non-registered, non commercial transport. E.g walk through causeway or private driving.
Each country will exercise its own discretion dealing with people who use multiple passports.