Stirton's work, he says, is now all about investigation. 'You literally are trying to find out what's happening and, finally, manoeuvre yourself to the point where you can take a picture, and then you're presented with a 20-minute window where it's: Okay, now get your picture!' His voice is charged with emotion. 'Fucking angst and worry and, you know, FEAR of failure – every aspect of that comes into those 20 minutes, so it's a very intense experience. So when I make those pictures, I'm worried; I’m nervous.

What's required of me in the field is to feel,' Stirton says with emphasis. 'And trying to take that feeling and put it in a form that communicates a particular set of emotions or circumstances - whether that involves depicting masculine pride, or a particular kind of suffering, or love, or closeness - my primary job is to feel and to try to put that feeling into some kind of visual form. My goal is to get to the heart of each story, you know? I’m trying to evolve in my work.