Typically, witnesses can only testify as to what they directly perceived, and cannot express their inferences. Exceptions exist somewhat for experts, but sometimes they render opinions that go to the very issues only the court can adjudicate upon, which the ultimate issue rule theoretically forbids. In Hoklai, the Court of Appeal [CA] acquitted an accused because it was highly sceptical of certain expert evidence. In so doing, the CA alluded to the seldom-discussed ultimate issue rule, which this piece addresses.
Courts | Evidence
Law, Society and Governance
Bepress Selected Works
Expert Evidence and the Ultimate Issue Rule. (2011). Research Collection School Of Law (SMU Access Only).
Available at: http://ink.library.smu.edu.sg/sol_research_smu/21