Commentary on Sections Part 11 - Evidence Chapter 2: Hearsay evidence Section 129:  Representations other than by a person
432.This section provides where a statement generated by a machine is based on information implanted into the machine by a human, the output of the device will only be admissible where it is proved that the information was accurate. Subsection (2) preserves the common law presumption that a mechanical device has been properly set or calibrated.