Bias undermines impartial decision-making and denotes a predisposition that prevents an open mind in adjudication. Bias denotes an inclination, bent, prepossession or pre-conceived opinion that creates a predisposition to decide an issue in a particular way and thereby prevents the mind from remaining perfectly open to conviction. As a legal concept, bias describes any mental or attitudinal condition that compromises impartial decision-making by producing a settled or leaning view on the merits before considering evidence.