What is the strengthening character test bill and does Australia need it?

Australian immigration minister Alex Hawke says the strengthening character test bill gives ‘more discretionary power’ to cancel visas. Photograph: Lukas Coch/AAP

The Morrison government has argued it needs to pass its strengthening character test bill to prevent “overseas criminals” staying in Australia.

Labor has said the government already has that power, saying if it can deport a tennis player (Novak Djokovic) it can deport someone with a criminal conviction.