If you're familiar with the tale of Robin Hood, who stole from the Rich and gave to the Poor, then you are no stranger to the concept of redistribution of income. This is essentially what government's do with tax (not 'stealing' exactly - although it depends on who you speak to).
The ATO has recently adopted a very aggressive strategy to collect more tax revenue. Earlier this year, they sent out hundreds of thousands of letters to taxpayers, warning them that their deductions may have been overstated, and advising to review their claims in order to avoid paying back tax and being penalised in the event of an audit. Many taxpayers saw this letter as a precursor to an audit, despite the letter stating that if the taxpayer believes deductions were claimed correctly, they need not take any further action.