Originally Posted by
broadwayboy
What is the rule for those with dual nationality? Assuming one has entered Japan last year with passport 'A' can he enter the 2nd time next year with passport 'B'? Will the fingerprint info from previous entry with different passport create a problem?
My educated guess is that it is not an issue, as long as you enter and exit on the same trip with the same passport. The fingerprint readers are placebos. They collect information but don't cross-check against anything in real time (and not even sure they do so in batch process, either).