The other criteria I applied was to allow everyone's statement to be nearly the truth. They will tell the truth but not the whole truth.
I took it there would have been intelligence supplied to the PJ that is verbal and not released (like the anonymous Crimestoppers line) so the PJ would be nearly right but not quite. That is not speculation in a way because it always happens, but I can't speculate what they knew or who it was that told them this information.
So when two or more statements don't agree there is the sign of one telling the truth but the others hiding something.
I was also allowing for everyone to behave unusually but with no criminal intent.
Can all this happen without anyone committing a major crime? Well at least less than murder or kidnapping.
Not sure I'd particularly agree with the part I underline.
Human memory is fallible.
Different people are bound to have different recollections and memories of the same event.
Doesn't mean that any are lying. All are trying (to the best of their ability) to recall and relate events as they remember them.
But there are bound to be variations in memory recall.
I think, when all accounts from separate sources are identical, you should begin to suspect collusion.
Nothing like that appears to apply in witnesses statements in PdL; the variations entirely normal and to be expected in circumstances such as those that gave rise to the exercise of taking the statements.