Sombath Somphone, a well-known member of civil society in Laos, was stopped by traffic police on 15 December 2012 then taken away in a pick-up truck. Six months on, his fate and whereabouts remain unknown. This report provides information about Sombath’s work in Laos, and reviews the facts of his disappearance and the Lao authorities’ subsequent investigations. The report concludes with recommendations to the Lao government and the international community, with the aim of ensuring Sombath’s safe return to his family.