I love the research phase of writing my books. It is always a shock to me how easy it is to find out how to kill somebody on the internet – or even how to find somebody to do it for you! Not all of my research is online, of course. There are certain things that need to be understood from experts – in particular any elements of police procedure. I don’t base my writing on the approaches witnessed in television programmes. I go straight to somebody who knows what really happens – a real, experienced, ex-detective chief inspector. And that too surprises me, though I always expect a significant difference between what we see on the television and reality.