they had a legal duty to do this unfortunately. They also had a legal mechanism by which they did not have to contact him at all - they CHOSE not to do this, despite it being an every day, common occurrence, according to many professionals speaking out across all media!
According to the mother they wrote telling him that he had the right to apply for parental responsibility which, at the time this was done, would have meant he had the right to decide what school the child went to etc etc etc.
Rotherham Council have confirmed that this is what they did, claiming that they had no choice, which is not true! The MoJ have said that they could have applied to a judge to NOT have to contact him at all!
The point is NOT what the father did with that information but what the council intended when they sent him that letter. They had all of the information about the circumstances, they knew full well who he was. The question is why they chose to adhere to one part of the law and not to use another? It is inconceivable that nobody knew about the legal waiver, so why did they not seek it?
In short: Anyone saying "Oh well, they were legally obliged to contact him" is wrong, the MoJ have confirmed this.