50/50 ATAR:GPA,
To be competitive I'd say an ATAR of 95 minimum and a D average.
Optimally, a 98 ATAR and a D+ Average should guarantee you a place.
For an internal transfer to their undergraduate Law degree its:
75:25 ATAR:GPA,
And I've heard a 98 ATAR and D+Average would be sufficient.