IEA Section 167: No new trial for improper admission or rejection of evidence

The improper admission or rejection of evidence shall not be ground of itself for anew trial or reversal of any decision in any case, if it shall appear to the Court before which such objection is raised that, independently of the evidence objected to and admitted, there was sufficient evidence to justify the decision, or that, if the rejected evidence had been received it ought not to have varied the decision.