Doctrine of bias in Singapore law
Bias is one of the grounds of judicial review in Singapore administrative law which a person can rely upon to challenge the judgment of a court or tribunal, or a public authority's action or decision. There are three forms of bias, namely, actual, imputed and apparent bias. If actual bias on the part of an adjudicator can be proved, the High Court can quash the decision. Cases of actual bias are rare due to the difficulty of proving the existence of a prejudiced judicial mindset. Imputed bias arises when a decision-maker has a pecuniary (monetary) or proprietary (property related) interest in the decision he or she is charged to adjudicate.