Crime fiction is a genre for writing stories about people - about conflict, about guilt, about passion, about the human condition.

Until the Eighties, Oslo was a rather boring town, but it's changed a lot, and is now much more cosmopolitan. If I go downtown, I visit the harbour to see the tall ships and the ferries, and to admire the modern architecture such as the Opera House or the new Astrup Fearnley Museum on the water's edge.

Good police officers are ugly.

I tell myself I write because I want to say something true and original about the nature of evil. That is very ambitious - to say something about the human condition that hasn't been written before. Probably I will never succeed but that is what I strive to do.

There’s only one thing worse than not satisfying a desire. And that is not to feel any desire.

Let me say here and now that faith has never done me any good, only doubt. So that is what has become my testament.

When I was a teenager, my father went bust. He could have declared himself bankrupt, but he was an honourable man and he insisted on paying back all his debts. That almost ruined the family. I was aware that my mother and father couldn't control things anymore. I guess I was afraid that we would end up on the street.