I thnk what strikes me is how easy it is for a child to disappear off the radar as this poor child did. Nobody saw him after the age of two weeks and reports are that the house was in a normal state at that time.
When I worked as a HV there were families who were not seen after the two week visit because they were utterly normal and no needs were identified. In the case of AH she was seen, an experienced mum, house looked normal, she didn't come to clinic but parents who have a number of children often don't as they feel secure that they baby is doing well and don't see the need.
Nothing came up in the radar for a long period of time.
I remember getting a call once about a child who had disappeared because the nursery were expressing concerns about his development. Nobody knew where the family were, they were not at their old house but this was still listed as their address. I finally caught up with them a year later when doing a new birth visit.....they had been out of the country for 18 months and had just returned. The baby was a cousin to their child and they were staying with the new parents while they sorted out a private let.
Their son dd not in fact have any development concerns but nobody knew where this child was and it took a very long time to find him.
In the case of AH it seems some concerns were raised but getting I to the property and getting AH to engage with anyone was a big issue. We still cannot just burst into somebody's house just because an abusive partner makes an allegation. If i had a £1 for every abusive partner who made spurious allegations regarding their child's mother I would be rich!
It is entirely possible for a child not to be seen just because a parent doesn't feel they need seeing...and they are usually correct.
Obviously there needs to be some way of addressing the issue of children not being seen by anyone. Then again there are plenty of MNers who would rather not see a HV or a doctor just because they are summoned for a development check. Then again their children are usually seen by many others and in nurseries etc.