West Coast Eagles defender Jamaine Jones is among witnesses scheduled to give evidence on Friday to the Yoorrook Justice Commission, which has shifted its focus to the child protection system.

Jones has previously said child protection took him and his brother away when he was a child. He found out later his mother had given him away, he wrote in Athletes Voice.

Aunty Sue Lovett, who will also give evidence on Friday, ultimately became a woman he considered his mother.

Members of the Aboriginal Justice Caucus will give evidence to the commission. The caucus is a self-determining body that provides Aboriginal representation statewide in Victoria, along with leadership and a strong voice.

Gunditjmara woman Bonnie Dukakis will share with the commission in her role as deputy executive officer for the Koorie Youth Council, which advocates for the rights and representation of Indigenous young people living in Victoria.

Legal service WEstjustice has put up chief executive Melissa Hardham and youth law program director Anoushka Jeronimus to give evidence to the inquiry.

The commission on Thursday heard from former Greens Senate candidate Sissy Austin, who recalled she received no support from authorities when she took on caring for her teenage cousin at age 21.

She said government officials try to get carers on side and instil an "us versus them" mentality against Indigenous mothers whose children are in care.

Yoorrook is creating an official public record on the impact of colonisation on Aboriginal people in Victoria and will recommend actions to address historical and ongoing injustices. It returned on Wednesday for another two-week block of public hearings.