Lambton OPP seized a shotgun and arrested two Tecumseh men after investigating reports of hunters shooting from a vehicle in Dawn-Euphemia.
Police were called to Langbank Line at around 5:30 p.m. Saturday.
It's alleged the driver was impaired, and was taken to OPP headquarters where he failed a breath test.
A 27-year-old man is charged with impaired operation of a vehicle, and a 24-year-old man faces a careless use of firearm charge.
Both are scheduled to appear in Sarnia court December 23.