Rather than making a fetish out of passports, a better approach would be to use residence (especially tax residence) as the main criterion for an individual's rights and responsibilities.

ECONOMIST: Citizenship

The global importance of the event was no longer the main criterion for sensational treatment: it all depended on whether a sufficiently irresistible headline could be teased out of what might be a run-of-the-mill story.

ECONOMIST: Behind the headlines

In the sample of of files reviewed, we noted that the main criterion for selecting a particular contractor appeared, in many cases, to be the purported availability of the contractor to commence the works within a reasonable timescale (which Property Conservation officers advised us in interview was considered to be approximately six weeks from instructions).

BBC: Edinburgh statutory repairs reports

The main qualifying criterion was the rate of pay.

BBC: In full: David Cameron immigration speech