Protesters participate in a Black Lives Matter rally, following the death in Minneapolis police custody of George Floyd, in Sydney, Tuesday, June 2, 2020. (AAP Image/Steven Saphore) NO ARCHIVING

Protesters participate in a Black Lives Matter rally, following the death in Minneapolis police custody of George Floyd, in Sydney, Tuesday, June 2, 2020. (AAP Image/Steven Saphore) NO ARCHIVING

Protesters face off with police on horseback during a Black Lives Matter rally, following the death in Minneapolis police custody of George Floyd, in Sydney, Tuesday, June 2, 2020. (AAP Image/Steven Saphore) NO ARCHIVING

Protesters participate in a Black Lives Matter rally, following the death in Minneapolis police custody of George Floyd, in Sydney, Tuesday, June 2, 2020. (AAP Image/Steven Saphore) NO ARCHIVING

SYDNEY, AUSTRALIA - MARCH 6: Protesters participate in a protest against Aboriginal deaths in custody in Sydney, Australia on June 6, 2020. Many thousands have rallied in Sydney CBD to stop Aboriginal deaths in custody after an appeal court's last-minute decision to authorise the public gathering.

SYDNEY, AUSTRALIA - MARCH 6: A man places a candle at a vigil with a portrait of David Dungay during a protest against Aboriginal deaths in custody in Sydney, Australia on June 6, 2020. Many thousands have rallied in Sydney CBD to stop Aboriginal deaths in custody after an appeal court's last-minute decision to authorise the public gathering.

SYDNEY, AUSTRALIA - MARCH 6: Protesters participate in a protest against Aboriginal deaths in custody in Sydney, Australia on June 6, 2020. Many thousands have rallied in Sydney CBD to stop Aboriginal deaths in custody after an appeal court's last-minute decision to authorise the public gathering.