"--05-06"^^ . "Ronald George Maddison"@en . "c.1933"@en . . "Consett, County Durham, England"@en . . . . "Ronald Maddison"@en . . . "Leading Aircraftman Ronald George Maddison (c.1933 \u2013 6 May 1953) was a twenty-year-old Royal Air Force engineer who died while acting as a volunteer human \"guinea pig\", testing nerve agents at Porton Down, in Wiltshire, England. After substantial controversy, his death was the subject of an inquest 51 years after the event."@en . . . "Leading Aircraftman Ronald Maddison"@en . . . . "Porton Down, Wiltshire, England"@en . "Leading Aircraftman Ronald George Maddison (c.1933 \u2013 6 May 1953) was a twenty-year-old Royal Air Force engineer who died while acting as a volunteer human \"guinea pig\", testing nerve agents at Porton Down, in Wiltshire, England. After substantial controversy, his death was the subject of an inquest 51 years after the event."@en . . . . .