We pushed Ofgem and the Department on what they were doing to actively look for fraud, and highlighted that fraud is likely contributing to the high level of defects on external and internal wall insulation.85 Written evidence submitted by members of the Green Homes Group (Ashden, Centre for Sustainable Energy, Citizens Advice, E3G, Friends of the Earth and Greenpeace) reported that people have experienced fraud and intentional bad practice as part of their faulty retrofits.86 The Department assured us that it is “bringing together the parties that might have information that would allow Ofgem to identify cases of potential fraud.” It explained that it is working to make sure data about households—such as their likely eligibility for schemes—can be shared across the system. It also told us that TrustMark had introduced different software systems that enable it to identify potentially fraudulent installations from the data it holds.87 Addressing current issues and reforming the system for the future