An independent investigation into an event involving the Surete du Quebec (SQ) was entrusted to the Service de police de la Ville de Québec (Quebec City Police Force).
Friday night, police SQ arrested a motorist apparently intoxicated, following an accident in Montmagny, east of Lévis.
The man was transported to the Sûreté du Québec in the city to undergo an alcohol test, and his health suddenly deteriorated.
He was hospitalized, and there are fears for his life.
The SPVQ try to determine the exact circumstances of the event.