OPINION: Improving system interoperability has been something of a technology holy grail for UK policing, and key to overcoming the frustrations felt by frontline officers as well as operational ineffectiveness and inefficiency; Wayne Parkes, former Chief Digital Data and Technology (DDaT) Officer for the Police Digital Service and now a DDaT policing consultant, believes the wider adoption of Integration Platform-as-a-Service (IPaaS) could be the solution.