The Danish government wants to normalize Christiania (the free zone in the middle of Denmark). The residents of Christiania (and not only they) see it somewhat differently of course: they see it as the destruction of their own small culture. That's why a demonstration is scheduled for August 30th - if you're in the area, you can demonstrate for a little bit of self-determined culture.
It's a shame how small autonomous groups are destroyed everywhere. In Germany with its obsession for order, you'd expect something like that by now (unfortunately), but in Denmark it used to be different...