If you are being prosecuted under section 82B, you have a defence if you believed that one or more of the exceptions in Part 2 applied to what you did. You must have had reasonable grounds for this belief at the time of the alleged contravention. You can refer to the exceptions in Part 2 to see if they apply to your situation.

If you thought an exception applied because you did not know the law, or you misunderstood it, this defence does not apply to you. The defence only works if your belief was based on reasonable grounds, not on ignorance or mistake of the law.

You can look at section 82B and Part 2 to understand what you can and cannot do, and what exceptions might apply to your situation, by following the links to section 82B and Part 2.