Maybe the Father, "Uncle" and Child are saying "starting to think we have disturbed a nest of nutters"
BUT!!!!!! Joking apart
This is all too odd. You know enough Social Workers to know that the Father cannot just emigrate, taking the child, to NZ without consent from the courts. Ex Policemen do not become ex policemen without very good reason. Sounds to me as if you are getting have got into something that you really ought to talk to the authorities about. How do you know this child is even his daughter? Because his "Ex-policeman boyfriend told me so" will look bloody silly in court. The child is 9 and wandering about the village, going into strangers houses and when one of those "strangers" asks perfectly reasonable questions the "father" flies off the handle and then just happens to have a "friend" with whom he is planning to emigrate and the said "friend" tries to head you off with stories about "I am an ex-policeman and it is all above board" ~ frankly Nick I say that is a load of bollocks and needs someone other than you to sort it out. Your duty is to the child. If there really is nothing untoward then no harm done but I wouldn't want it on my conscience that I had done nothing if/when the sh*t hits the fan.