Will Hodgman was working as a child protection prosecutor when the "fire" in his heart was first lit to get into politics to better protect society's most vulnerable.
Mr Hodgman, who led Tasmania between 2014 and 2020, considers the implementation of his state's plan to reduce family violence during his government's term as one of its most important changes.
"Seeing how governments cannot adequately protect and care for vulnerable people in communities right across the world, but including in my home state, was something I thought I'd like to improve," he told AAP.