Why, is it illegal in Norway?
Perhaps he was making other people's things disappear. ;)
Bergen was quite the hotspot for grim, painted, black-clad, musical magicians in the 90's. Not all of them were good at acting nice all of the time. The dark arts of Sonic Sorcery were quite frowned upon. (Uglesett)
You're a wizard Hallvard!
Maybe his magic was based on strange rituals using trols hairs collected during the longest wither night in Bergen...
I have a doubt with the translation. Could "She was stopped by the police of Bergen for using magic" be also considered correct?