Bias

The second limb of the rules of natural justice or procedural fairness. It disqualifies those whom a reasonable person would believe incapable of making a decision impartially.

Fundamental fairness — lack of impartiality; bias may be actual, reasonably apprehended, or structural.

Reference

Old St Boniface Residents Association Inc v Winnipeg (City) (1990), 75 DLR (4th) 385 (SCC)