Precedent fact errors in Singapore law occur in administrative laws that concern the the control of government power, including the responsibility of the government to provide homeless people with accommodations.
Administrative law in Singapore is a branch of public law that is concerned with the control of governmental powers as exercised through its various administrative agencies. Grounds within the first category are simple ultra vires and errors as to precedent facts; while errors of law on the face of the record, making decisions on the basis of insufficient evidence or errors of material facts, taking into account irrelevant considerations or failing to take into account relevant ones, making decisions for improper purposes, fettering of discretion, and failing to fulfil substantive legitimate expectations are grounds within the second category. This is illustrated by Puhlhofer v. Hillingdon London Borough Council (1986), which involved a public authority that bore a statutory responsibility for providing homeless people with accommodation. Errors as to precedent facts, sometimes called jurisdictional facts, in Singapore administrative law are errors committed by public authorities concerning facts that must objectively exist or not exist before the authorities have the power to take actions or make decisions under legislation. 
