Why couldn't they have made a mistake? We know that Sheila's age was recorded differently, which was a mistake if there was only one call, and Pc West and Malcolm Bonnett later contradicted each other as to who despatched car CA07. Arguing that Pc West would definitely have told Jeremy that his father had already called doesn't suffice. Pc West's priority would have been to log what Jeremy told him and take appropriate action. If Jeremy was guilty, why wouldn't he have dialled 999?
West DID make a mistake, he admits he may have wrote the time incorrectly. He probably wrote it at the end of the call, he even suggests that such things might happen although they do their best to record the time at the beginning of the call, it doesn't always end up that way. Sheila's age may simply have been misheard by Bonnet.
I'm not really arguing that PC West would have told Jeremy that his father had called - I'm asking WHY if EP knew that Neville had called that they didn't mention the call - even at the beginning when the relatives were accusing Jeremy? Taff Jones WOULD have mentioned it to get them off his back and Stan Jones would never have suspected Jeremy because he would have KNOWN Neville was alive when Jeremy was talking to police in from Goldhanger. I really can't say it any clearer - if you don't have a reason WHY this call was kept secret, then how can you even being to argue that it occurred. Seriously, this is starting to reek of desperation. It's a simply enough question that no one has an answer for.
