Revolutions in Europe and forensics in history

Adam Zamoyski explains why Europe’s rulers were gripped by paranoia after the French Revolution, while Val McDermid reveals how science has helped solve crimes over the centuries

Historian Adam Zamoyski discusses his new book, Phantom Terror, which reveals how Europe’s rulers lived in fear of conspiracies in the years between the revolutions of 1789 and 1848. Meanwhile, crime writer Val McDermid highlights some of the scientific techniques that have been used to catch criminals in the past