Investigators arrested the nitrous-oxide seller connected to a serious night crash at Kaysersberg Vignoble and seized cannabis during the same operation.[1][2] The earlier crash left two people injured, including one seriously, during the night of 30 December at Kaysersberg.[1][2] Four young people had been travelling in the Peugeot 206 SW involved in the crash.[1][2]

Four young people aged 17 to 23 were travelling in a Peugeot 206 toward Colmar when the 19-year-old driver lost control.[3] The Peugeot lost its engine block and came to rest on its side.[3] Firefighters had to extricate the 19-year-old driver, in absolute emergency, and an 18-year-old passenger, in relative emergency.[3] Both were transported by SMUR to Pasteur hospital in Colmar.[3]

The gendarmerie investigation was to determine whether speed alone caused the crash or whether substances consumed by the young people, at least the driver, caused the loss of control.[3]