In the wake of the Bondi Beach shooting, what is Australia's legislation on gun ownership?

Australia's leaders have agreed to strengthen gun laws across the country in the wake of the mass shooting at Bondi Beach. After a meeting with the heads of states and territories, Prime Minister Anthony Albanese said they had agreed to look into ways to improve background checks for gun owners and bar non-nationals from obtaining weapons. Mass shootings are rare in Australia, where gun ownership is tightly controlled - but some say the laws are slipping.