Scott Walker is one of the world's most experienced kidnap-for-ransom negotiators. He has helped resolve more than three hundred cases and other crises, such as piracy and cyber-extortion attacks. He spent sixteen years as a Scotland Yard detective engaged in covert, counterterrorist, and kidnapping operations. He left the police in 2015 to support organizations, government departments, and private individuals in securing the release of hostages. He now delivers negotiation workshops to organizations all over the world and is sought after as a keynote speaker. His first book, Order Out of Chaos, is out now and is a Sunday Times bestseller.