Although not an impaired driving case, this appeal decision provides a good review of how a collision re-enactment video was used in a dangerous driving trial:
The vehicle driven by [the constable] during the re-enactment was similar to the 2005 Highlander driven by Mr. Gosse and [the constable] wore the GoPro on her forehead to adjust for any height differential between herself and Mr. Gosse. The motorcycle was placed in three different positions in order to provide a perspective on what Mr. Gosse would have been able to see. It is my view that it is clear from the viewing of the Ogden Point video, and from the enlarged video, that Mr. Broda’s motorcycle was going around the speedbump and entering back into the roadway when the collision occurred. R. v. Gosse, 2017 BCCA 356