[messe]

You can own multiple guns and store them at your residence in Denmark. I know a couple of people who do so, admittedly both ex-military.

This isn't limited to shotguns or bolt action rifles for hunting. You can own up to six handguns.

You do need to be licensed however, and given Andersen's history he probably wouldn't be permitted.

[herbstein]

You can. But ammunition and the guns have to be stored in separate safes. And it's essentially impossible to get off with a self defense claim if you have time to gather your legal guns

[msh]

It would still (in most cases, your response have to be proportional to the threat) be a crime to use them against a intruder.

[tchalla]

You should also add that most private guns owned in Denmark are typically for hunting, not self defence.