I'm always watching people over a short time frame, putting them in an extreme position. Sometimes you don't see the humanity in a person because the time frame is so short and the circumstance so extreme.

What worries me is the professionalism of everything.

I'm not interested in details that might get someone into trouble. I'm more interested in generalities rather than the particulars, as a journalist would be. Names, dates and times don't interest me at all. I'm interested in feelings and emotions. Most people are game, once they realize that you're on the level as far as that's concerned and you're not about exposing them, then they feel quite free to talk about it. Police officers and social workers are no exception.

I think just getting up and getting to the desk is a big thing. If you can do that, you're in the zone because there're so many distractions that can stop you. From my bedroom to my office isn't really that far, but I have to go via the kitchen and there's so many things that can stop me and interrupt me.

Bowie's death is a very emotional thing. My generation of working-class Britain, it feels like we lost our spiritual leader, our guru. I always thought that if I was to be a hundred, somehow Bowie would be a hundred and fifteen. He'd be there to still steer me and guide me.

How did it make you feel?

I've always got a book in my hands, a novel in my hands. The more I get into film, the more paranoid I get that I'm going to stop seeing things.