Her past career? She was still active in right before she went on holiday, it is hardly a "past" career.
Personally I don't care what she did to make money on a daily basis, that part in and of itself is irrelevant, the issue is the constant lies to all those around her, including those in her chosen workfield. It is showing that whatever testimony she gives is unreliable and it is what the prosecutors are going to use on her. She would be much better served to start telling the truth, or the "lenient" sentence (5 years or so or even switch to an Aussie cell) they are all hoping for will evaporate and she will be there for 20 years+.