Kimberley MLA Divina D'Anna has criticised what she described as a "hierarchy of outrage" following the alleged terrorist attack at the Invasion Day rally in Boorloo/Perth.
Speaking in the Western Australian Legislative Assembly on Tuesday, Ms D'Anna said some political and public voices had failed to respond with the same force they would have shown in other circumstances.
"Those same voices who are quick to condemn violence elsewhere remain silent on January 26 — and that silence speaks volumes," she told Parliament.
The comments come weeks after 32-year-old Liam Alexander Hall was charged over the incident.
Police allege he threw a homemade "fragment bomb" containing ball bearings and screws into a crowd gathered in Perth's CBD. The bomb did not detonate.
Earlier this month, Hall became the first person in Western Australian history to be charged with a terrorism offence.
The Joint Counter Terrorism Team confirmed it was investigating the incident as a potential terrorist act.
In the days following the attack, Aboriginal leaders questioned aspects of the public response.
Noongar human rights lawyer Dr Hannah McGlade criticised what she described as an underwhelming acknowledgment of hate-motivated violence.
"Not surprisingly the response of the WA Police was underwhelming. While a man was swiftly apprehended and charged, the public response lacked any acknowledgement of hate and terror," Dr McGlade said.
In Parliament, Ms D'Anna said political leaders must respond consistently to acts of violence.
"We cannot have a hierarchy of grief," she said.
"If we are to be credible in our condemnation of terrorism and political violence, we must condemn it consistently, regardless of who the victims are."
WA Opposition Leader Basil Zempilas did not publicly comment in the days immediately following the incident.
Ms D'Anna called on political leaders to hold themselves to a higher standard; "One that refuses to exploit division and refuses to stay silent when violence is directed at communities we claim to represent."
