I wouldn't agree that the breadth depends on the threshold. I think that the investigation can only be recorded, or produced or sworn to what has actually been collected. The investigators' only real interest is to reproduce whatever they've discovered through observation, through collection of evidence, through witness testimony or something like that, which has been provided to them in relation to the case. I can't really see an investigator producing anything outside of what they've already collected or what they've observed to a JP or a judge.
