Northern Ireland and violence, whether criminal or political, remains a public issue. Dr William Matchett served with the Royal Ulster Constabulary (RUC) and the Police Service of Northern Ireland (PSNI) for 30 years. He mainly worked in Special Branch, the RUC’s intelligence department. Matchett then became a police adviser in Afghanistan and Iraq, among other places. He adapted his doctoral thesis to write Secret Victory: The Intelligence War That Beat the IRA. It is available via the Secret Victory website as well as all good outlets.