She has no right and no business to interfere. The PJ didnt and still dont seem to want the help of the UK police...but a social workers ok
She was inept.
Had her intentions been bona fide her concerns would have been for all the children directly concerned. According to her own account she did not ask a single question regarding the children's welfare.
She didn't have to 'home in' to an obviously distraught couple to do that and she would have been useless in liaising between English speakers and Portuguese for the simple reason that although apparently being domicile for a large part of the year in Portugal, in seven years she had never bothered to learn the language.
She was a part time worker who contacted no-one who might have sanctioned her presence there: not domiciliary support services; not English support services; police HQ; consular services etc;
She had plenty of time to do so - by her own admission she had not set off immediately to Luz as she had "some thing to do at home" first.
Incredibly she questioned the resort manager about a 'break-in' who told her about the the unlocked door and the open window.
She hung about like a voyeur waiting for the British Consul to arrive to 'offer help'. Unknown to anybody and an encounter on the street!
Words fail me about the actions of this woman who never mentions having a single thought regarding the welfare of the children or even asking anything about Madeleine. Which is actually fine because it was none of her business anyway.