Personally, I do not think this ruling by the Judge and request for documentation from the McCanns regarding prior approval from the High Court is good news for the parents of Madeleine. It suggests that the claims made on behalf of their daughter could possibly be ruled invalid.
But, I think it is a clear sign that Amaral believes he is likely to lose the actual argument regarding the case.
This is a very late move on his part, after four or more years of legal argument, to limit the potential damage he may be suhjected to. Were he to believe that he was actually winning the substantive legal arguments then he would have no need to attempt this damage limitation.
Also I wonder just what the Judge will think of this late tactic. Does it mean that Amaral was not even aware that Madeleine McCann had been made a ward of court? Was his knowledge of the case and the surrounding events so poor? Or was this tactic held in reserve? Was it that famous "ace up his sleeve" that we kept hearing about? If so, and if the Judge learns that he knew of this potential lack of validity of the case earlier and did nothing about it till so late in the day that would not bode well for him at all.
And finally, no matter how this pans out regarding the validity of the judicial claims made by the parents on the part of their daughter it does not affect the other four claims against the former detective. The case will still have to be judged on the basis of the damage potentially caused to the four individuals concerned by his thesis which suggested the McCanns behaved illegally which he published after the PT authorities had produced the case report which stated that there was no evidence of any crime by them.