Most good police officers are very open-minded. The bad ones are the ones who are close-minded.

If you go into a bar or restaurant with a cop, the first thing he does is he'll stand in the entrance, and he'll look at every single face in that room because he doesn't want to spend an hour having a drink or lunch and didn't spot some villain they've been looking for, for two years.

There's no question that ghosts exist. The big question for me is whether ghosts are simply electronic imprints left in the walls or the atmosphere of places, or whether they do actually represent something from the afterlife.

My day starts with Radio 4's Today live or 'listen again' wherever I am in the world, thanks to digital radio - I even have an app on my iPhone that receives it.

I've always been much more scared of the living than I am of the dead.

Obviously I don't have whatever it is you need to be a successful writer.

Music is an important part of my writing process.