 He is currently a Senior Research Fellow at the Institute of Ethics, Law and Armed Conflict in the Blavatnik School of Government at the University of Oxford.Slim is a son of John Slim, 2nd Viscount Slim, and Elisabeth “Buffy” Slim, née Spinney.He was educated at Broadlands Primary School in Hereford and St George's School, Windsor before going to Eton College and then to St John's College, Oxford where he studied Theology.