Obviously this is a sensitive issue so I don’t think the defence would be publicly speaking about this yet. I’m certain that the defence team are aware of this by now though and will have checked it out. I’m 99.99% positive that this UTC/BST time mixup is exactly what happened and that it likely is part of their whole CCRC application. It’s the only thing that makes sense unless everyone, not just Letby, has their timings wrong by an hour that night.
To contextualise for people who are new to all this: while the night in question was obviously traumatic, the mother of Baby E did not suspect Letby of harm at the time. She only began looking back at that night with suspicion, as anyone would, after the police came to her door several years later saying that Letby murdered her baby. I mean, hearing that, I would also start combing through my memories and poring over records. I think we all would. It wasn’t until then that she requested her phone records from the phone company to see what time she called her husband that night, knowing that she called him twice.
Telecoms standard CDRs (call detail records) generated by network switches are stored in UTC in the raw system, since that avoids daylight savings complications. Itemised phone bills are adjusted for daylight savings times, but it’s clear from the mother’s words, and the discussion around it, that what she was given was call records, not her bill. What she would have been sent are these call detail records (CDRs) and those are given in UTC, straight from the network logs, precisely because they’re system-level outputs rather than customer bills. An itemised bill in BST would still require everyone else to be an hour late in their own records in ways that it would be impossible for Letby to have arranged.
The specific timings of the midwife vs the mother etc were not dissected at trial. It’s only at Thirlwall that the midwife’s notes/times were referenced, but not in the context of analysing her timings against the mother’s. The prosecution built its narrative around the unadjusted “22:52” time and no one adjusted (or perhaps even thought of) the likelihood of a time difference.
You may think that the police would surely have thought of this and to that I’ll remind you that Cheshire police made a multitude of serious data blunders in this case. They managed to get the very simple data from the door swipes entirely back to front for the whole trial and that was something that was leaned on constantly by the prosecution to ‘prove’ Letby’s opportunities to ‘strike’. Not having picked up a UTC vs BST time difference in phone records that the mother sourced (not sourced directly by the police) would be the very least of their blunders and much easier to miss.
You may think surely the defence will have thought of this at trial, but this was a huge and complicated trial with many thousands of documents and pieces of data to comb through. The defence were not equipped to comb through literally everything with a fine tooth comb. They were overwhelmed by the sheer volume of everything and we’ve seen that other important details have been missed by them too (e.g. Dr Jayaram’s email that contradicted his own words at trial about Letby calling for help in the baby k case). A subtle thing like UTC v BST could easily be overlooked. It’s a needle that they didn’t even know they were looking for in a barn full of haystacks.
Anything else requires everyone, not just Letby, to be wrong/lying. The UTC time difference in the call logs vs the hospital notes in BST is the only thing that makes sense.