For thirty years, Hamish has served and volunteered in conflict zones around the world. As the army's foremost chemical weapons expert, he built a unique first-hand understanding of how to prevent attacks and train doctors on the frontline - saving countless lives in the process.

After suffering near-death experiences time and again, Hamish discovered he had a ticking time bomb in his own chest: a heart condition called Sudden Death Syndrome that could kill him at any time. But with a new awareness for the fragility of life, he fought harder to make his count.

Despite facing extraordinary personal danger, Hamish has unearthed evidence of multiple chemical attacks in Syria and continues to advise the government at the highest level, including after the 2018 Novichok poisoning in Salisbury. Lifting the lid on Hamish's unique world of battlefield expertise and humanitarian work, Chemical Warrior is a thrilling story of bravery and compassion.