The death of Melbourne heart surgeon Patrick Pritzwald-Stegmann has again focused attention on the fatal consequences of so-called “one-punch” attacks.

In response to this form of violence, Australian states and territories have enacted quite different laws, often following campaigns by family members seeking justice for a lost loved one.

On this episode of Change Agents, Andrew Dodd speaks to two of these campaigners. In Victoria, Caterina Politi campaigned successfully for ten-year mandatory minimum sentences following the death of her son, David Cassai. And in the Northern Territory, Amee Meredith lobbied for tougher sentences after the death of her husband, Brett, who was also a territory police officer.

Change Agents is a collaboration between The Conversation and the Swinburne Business School and Swinburne University’s Department of Media and Communication. It is presented by Andrew Dodd and produced by Samuel Wilson and Andrew Dodd, with production by Heather Jarvis.

The authors do not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and have disclosed no relevant affiliations beyond their academic appointment.