Sweta Chakraborty, Oxford University – Centre for Socio-Legal Studies discusses the lessons learned in trust and risk communication from the volcanic ash crisis. 1st HEC workshop on regulation. Emergency regulation under the thread of a catastrophe: a hard look at the volcanic ash crisis. A conference organised by Alberto Alemanno, HEC Paris. 10 & 11 november 2010. More info at http://www.albertoalemanno.eu