What are some possible defences for the tort of negligence? Australian.

In Australian law, there are a few defenses available in the tort of negligence. I can explain them to you. However, please note that I am an AI language model and not a legal professional. It's always advisable to consult with a qualified lawyer for accurate legal advice.

1. Contributory Negligence: This defense asserts that the plaintiff contributed to their own injury or loss through their own negligence. If the defendant can prove that the plaintiff's actions were partly responsible for the harm suffered, it can potentially reduce the defendant's liability. The court may apportion the responsibility and adjust the damages accordingly.

2. Voluntary Assumption of Risk: This defense argues that the plaintiff knowingly accepted a risk associated with the defendant's actions or conduct. If the defendant can demonstrate that the plaintiff was aware of the risk and voluntarily agreed to undertake it, it may limit or eliminate the defendant's liability.

3. Statutory Authority: If the defendant can show that they were carrying out their statutory duties or powers while causing harm, they may invoke the defense of statutory authority. This defense can apply to government entities or individuals acting under specific statutory provisions.

4. No Duty of Care: In some circumstances, the defendant might argue that they owed no duty of care to the plaintiff. For example, if the harm occurred in a situation where no legal duty existed between the parties, it may absolve the defendant of liability.

5. Necessity: Necessity can be used as a defense against a negligence claim if the defendant was compelled to act in a way that caused harm due to an emergency situation. The defense of necessity claims that the defendant had no reasonable alternative and had to choose the action that caused the least harm.

It's important to note that the availability and applicability of defenses can vary depending on the specific circumstances of the case and various factors such as jurisdiction, statutory laws, and case precedents. Consulting a legal professional who specializes in Australian tort law would provide you with accurate and reliable information based on your unique situation.