I have no idea. It was up to the PJ to verify and cross-check.
Mrs Fenn's testimony, for example, could have been important and shouldn't have been that difficult to verify and cross-check, but it doesn't seem to have been. A bit late now.
Pamela Fenn's statement is dated 20 Aug 2007. How does one verify a crying incident from 1 May 2007 nearly 4 months later?
This aspect was followed up in Rachael Oldfield's rog statement. She was in 5B looking after a sick child on 1 May 2007. Did she hear crying, she was asked. Her reply was that that she had gone to bed around 9 PM and did not hear crying.
You can still cross-check on this story today. Kate McCann's phone records show that she was busy answering her phone on 1 May 2007, after leaving the Tapas, and somewhat earlier than the crying incident, so if Madeleine cried that night for 75 mins, Kate is one heartless bitch.
Tweak Mrs Fenn's statement to 2nd May 2007, and everything fits. Kate's book says Madeleine put it as that night. I believe some of the other rogs cover Madeleine's comment re crying on 2nd May. And 2nd May was the stop-out night, as attested by all and sundry. (OK by quite a few people!) The phone records support this (but do not prove it).
Let me see - what are the options?
Pamela Fenn was talking tosh. That does not seem right as statements and Kate's book alike refer to a crying incident.
It happened, and it happened on 1st May. Kate's phone record disagrees. Rachael Oldfield might have slept well. Mrs Fenn was right. So Kate is cruel beyond belief.
It happened, but on 2 May. So Pamela Fenn was one day out 4 months later. The phone records match. There was no sick child right next to 5A. The overall timings match the T9 statements, and the waiters serving them. And Kate has Madeleine saying it the next morning. (By the way, the Pamela Fenn info surfaced quite some time before her statement date.)
Note that if Madeleine cried for an extended period, whether it was 1st May, or 2nd May, then it does not paint the McCanns as caring parents running frequent checks.
In fact, the whole 'frequent checks' reported by the T9 simply falls over. How can you visit 5B, frequently, and not hear kids in 5A crying?
Having dug that lot out of the files, let me return to my original question. How would the PJ have verified that in Aug 2007? I can guess at it, but neither the phone records, Mrs Fenn's statement, Kate's book, or the rog statements prove what happened.
For that, I would need an independent witness who heard the crying, remembers the date, remembers the length of crying, and can locate it to 5A or nearby. Or one who can, unequivocally, trash the crying incident.
The reality is we have real life witnesses. And quite a lot of obfuscation on top.