Tabitha Acret has made it her mission to fight against domestic violence since the murder of her daughter, Mackenzie Anderson.

Mackenzie was 21-years-old when her former partner, Tyrone Thompson, stabbed her 78 times inside her Newcastle unit in front of a toddler.

Thompson was sentenced to 22 years and six months in jail, with a non-parole period of 15 and a half years.

Since the ruling, Mackenzie’s mother has worked tirelessly to change the system and that reform has now arrived.

Last week, the NSW Parliament passed new laws that ensure anyone who kills a current of former partner will serve at least 25 years in prison before the possibility of parole.

Acret now wants the laws to be made national. She has written to every premier around the country, calling on the other states and territories to adopt the mandatory non-parole period.

The Newcastle mother tells 10 News+ she will continue campaigning against domestic violence until her ‘last breath’.

Tomorrow, Tabitha will lead a vigil on the streets of Sydney, ‘Unite Against Violence: No More Empty Shoes’.

Watch more from 10 News+ at 10.com.au