A Bright-Line Test
This phrase is frequently used by judges and lawyers: there are roughly 400 cases in CanLII which employ it.
Notable among them is R v Neil, 2002 SCC 70, where Binnie J applies a bright-line test to identify lawyers’ conflicts of interest.
We all know what this means (a test that is clear, easily applied and certain in outcome), but how did we come to use it?
The legal notion of a bright line seems to have its origin in Girard Trust Co v Commissioner of Internal Revenue, 122 F2d 108 (3d Cir 1941), where Goodrich CJ observes …