In his police career John developed a unique professional profile encompassing most aspects of policing with a particular emphasis on the specialist areas of investigation including national security matters. Furthermore, John was immersed in a national programme of ICT enabled change and has accrued unparalleled experience in process improvement and the management of information assets within the criminal justice arena. As a senior officer working in this environment he developed an exceptional understanding of the political and cultural challenges of introducing change in the complex criminal justice environment.