In a first-degree murder trial, the Crown sought to admit expert opinion evidence on shooting scene reconstruction.
The court ruled on the admissibility of Detective Constable Grant Sutherland's expert testimony.
While evidence concerning the general operation of revolvers and the specific firearm's design and gunshot residue (GSR) dispersal was deemed admissible, the expert's opinions on the gun's position, orientation, and the likelihood of the deceased discharging the shot were excluded.
The exclusion was primarily due to concerns about the expert's methodology and demonstrated confirmation bias, indicating an unwillingness or inability to provide impartial, independent, and unbiased evidence.
