His dual areas of expertise lie in the science of persuasion and influence and in the psychopathic personality. His unique contribution to the former field is his identification of the SPICE model of persuasion which details five core components of effective influence (simplicity, perceived self-interest, incongruity, confidence and empathy.) His unique contribution to the latter is that, having been instrumental in drawing attention to a sub-group of psychopath known as the ‘functional’ or ‘successful’ psychopath, he has now gone one stage further and made the case that there are also GOOD psychopaths: people who are ruthless, fearless, charismatic, focused and unempathic…but who use these qualities for the good of society as opposed to its ill.