I thought it was common knowledge that it wasn't JM who'd gone to the police first.
It is, but the position was that Julie was present or around when the call was made by Liz Rimmington to Witham Police Station, who then contacted Stan Jones, who then spoke to Liz. Therefore, the call was made on Julie's behalf.
In contrast, the podcast seems to be saying that Julie didn't go to the police at all, in fact Malcolm Waters made the initial report to the police, and the CT have documentary proof.
I'm not trying to get into a debate or argument about it. I merely report what I have heard and provide the link.