Watch a recording of Dr Anna Feigenbaum as she examines the use of tear gas from the battlefields of World War I to the streets of colonial India, and from the Bogside in Northern Ireland to the Umbrella protests in Hong Kong.
Drawing from military, colonial and science archives, including the Himsworth papers from Wellcome Collection, this talk explores the science of policing with tear gas over the past 100 years – and the politics that surrounds it.