Lewis was awarded a PhD from Cambridge University (Queens’ College) and has worked in education for over 20 years. He is a Trustee of the Autism Centre of Excellence at Cambridge; Advisor for Hostage International; and a Board Member of Time-Matters UK, supporting children with a parent/s in prison. In 2018 he set up his St Martin’s Challenge which has raised over £100,000 assisting vulnerable people on the margins. As part of this Challenge, Lewis ran 100 miles from Ruislip to Canterbury in aid of PET. He has volunteered at HMP Pentonville and trained as a Mentor at HMP/YOI Feltham.