Yup we are lucky here in New Zealand - we have first practitioner rights. A patient can choose to come to the physio without any referral and we will treat them appropriately. That is key, appropriate treatment. Our physio board and training scemes are heavily focussed on providing a 'no harm' service. And if you can do some good then all the better. What it boils down to is that we have a training which has a heavy component covering typical non-physio presentations and clinical reasoning such that we can identify when a patient has come to physio inappropriately and requires a referral on to an appropriate provider.
We certainly have supervision from without our profession if it is required (e.g. for new graduates), but there is no PMR team telling us what to do.
Any more questions about the NZ system are encouraged - I'm quite proud of it really when I think of other places in the world that don't have the same rights.