This is ARMED ROBBERY in the name of public health
She should be given a lifetime free train pass paid for by the state of Victoria. The officer should be required to go through retraining without pay for grabbing her bag which was theft, however wrong as it was, it was a possible creative solution.
I don't know how things work in Australia, but I hope she can bring a suit against the police. And hopefully those two officers will be properly disciplined.