Charles'has an extensive background in digital health, working in both public & private sectors. His recent work has centred on the regulation & assessment of mHealth apps. He is CEO of the Digital Health & Care Alliance (DHACA), a Contributing Editor to'www.telecareaware.com, a Special Adviser to both NICE & the CQC, organiser of the London Health Technology Forum, and a Past President of the Royal Society of Medicines Telemedicine & eHealth Section. He consults for Humetrix Inc on app-related matters. He chairs Citizens Online, the digital inclusion charity.