Well, existing voting fraud laws exist there. You could go to different places, but you would have to know a lot about the person you are hoping to take the vote of. Also if you get caught it is 10k fine or five years jail. And this is something that judges will hit people hard with. In general it is a non-issue though. The same amount of people who say they committed voter fraud is the same amount that say they were forcefully abducted by aliens.