Bearing in mind, the two NSW detectives, there with the Western Division of the RCMP are there as a courtesy to Mr Fowler and the Australian Police community at large, and not in any investigatory position whatsoever, having no jurisdiction, but they would be in constant communication with the Fowler family. I very much doubt if they would see their remit as one of disclosing one iota of info to any Australian news agency, except, and it would be a big exception, to the ABC.. the AU equivalent of the CBC and the BBC. No other news agency would be considered.
I have looked on the NSW POL website, and there isn't anything … not surprisingly. It is not exactly an official exchange of personnel, but a gesture of good will and international harmony.
As an aside.. a young Canadian woman was murdered by a stupid Sydney Australian man, horribly, and the NSW arranged for two RCMP chaps to accompany her mother, and brother ( I think ) in Sydney for the trial, and to be her spokesperson and the go-for for the bereaved family. It isn't unusual for this kind of exchange and reciprocated stuff going on , especially, between the UK, NZ, AU, Canada.