Tomorrow, Tuesday, the Riksdag opens.

Several of the Sweden Democrats' members of parliament from Scania represent a different electoral district than where they live.

Both Patrik Jönsson from Hässleholm and Jörgen Grubb from Malmö will represent Västra Götaland in the coming term.

In other words, they sit on the "wrong" bench in the Riksdag.

- It is perfectly fine to do so and the parties agree on that.

But the Sweden Democrats are the only of the established parties that have a national list, says Anders Sannerstedt, docent in political science at Lund University.

Watch in the video as he explains three questions about why SD has a national list and what it means for democracy.