How and ever, the Constitution sets states up as sovereign and the Commonwealth only gets a look in on issues that the states and territories have agreed to cede to the Commonwealth. Actually, a national approach would be very unhelpful right now. Even within states, we are seeing local differences in regulation according to need. A one size fits all approach either leads to restrictions being placed on areas that don't need it, or on an inability to tackle hotspots until the problem has got big enough to justify a national intervention.