There are defences to such charges. Some of the defences available include:
A conviction for a drink driving offence in Queensland will result in a mandatory licence disqualification, although the period of disqualification depends on the licence held and the alcohol reading.
For Open licence holders, the minimum disqualification periods are as follows:
0.05% -> 0.99%: 1 month
0.1% -> 0.149%: 3 months
0.149% and above: 6 months
For unlicensed drivers, Learner and Provisional licence holders, the minimum disqualification period is 3 months.
If a person has a prior drink driving conviction within the last 5 years, their minimum disqualification will automatically increase.
You should always seek expert legal advice to make sure that you know what penalty you might receive.