I do know how hard most people in social services work, nightowl and apologise if I offended you but cases like this one do slip through the net.
Young, inexperienced social workers, pressurised and working under strain may well make mistakes. Sometimes parents can be very plausible but surely warning bells should ring if teachers and others, who see a child daily, are alarmed.
I posted above that I don't think that Daniel's Law ever came near the H of C all those years ago, which would have given more powers when a child was thought to be in danger. Complacent politicians who could have taken action.
As for the police, who allegedly told the grandmother she would be arrested for breaking Covid rules if she went near the family, if true then not fit for the job is still my opinion.
I've seen horrendous photos, read lots of reports of child abuse and it never ceases to outrage and upset me, especially where authorities were alerted and no action was taken.