Read Matt and Russ interviews. Matt said Kate left at 9.50pm and was back within a few minutes. Russ said he returned at 9.45 and around 5 minutes later Kate left to check when he got his reheated steak. Fiona also said Kate was back quickly - not gone 5 minutes as she said. The alarm was raised 9.55pm at the latest. Of course some didn't know what time it was but they later heard shouting it was 10pm - I wonder who was shouting that time and funny it being the same time of the Smithman sighting lol.
This is proof of nothing..
Not even the Smiths cannot be sure when exactly the sighting happened.
If there was a cctv then a different thing.
But Scotland Yard can prove the timings.. do you know how? By matching the times of Smiths phones pinging the towers and same time matching the Tapas group phones.
I know of a case that was solved like this.. i.e if Gerry's phone was 'close' to the Smiths phone then it could be Gerry who was carrying Madeleine. But if Gerry's phone was 'close' to Tapas group phones then it wasn't him.
Simple.
We are not privy to this information but I believe SY has it.
They also can know whose phone was close to Smitsh phones.
I wouldn't be surprised if exactly this is the 'evidence' - reason SY is asking PJ to question someone.
As I said, I know of a case where that has happened before..