Police investigate reports Tash Peterson had mug thrown at her in Hillarys on Australia Day

Prolific protester Tash Peterson claims she was injured after a mug was allegedly thrown at her during a public protest on Australia Day.

Police are investigating reports that Peterson suffered bruising in an altercation with an angry diner at a cafe at Sorrento Quay in Hillarys.

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Elaborating on social media, Peterson said the woman threw “a rather large ceramic coffee mug” at her, with the altercation unfolding in front of shocked families.

“It broke immediately when it hit my shin, resulting in a golf ball-like bruise on my leg,” she said.

“The whole thing was so intense. I was actually in shock, to be honest.”

Tash Peterson points to a bruise on her leg. Credit: Tash PetersonTash Peterson said a diner was outraged by the way another activist was dressed. Credit: Tash Peterson

Peterson – who filed a formal complaint with authorities – said the woman took exception to the way another protester, who was wearing a bikini, was dressed as they spoke to punters and held signs last Thursday.

“Violence is a common response faced by non-violent animal rights activists,” Peterson said.

“However, this only fuels our fire to fight even harder to end the animal slaughter.”

Peterson said the incident was exacerbated when an activist walked into a nearby burger joint to ask for some ice to nurse her bruise, “and they came out with a broken slab of meat”.

Police are investigating the Australia Day support. Credit: Tash Peterson Peterson says “violence is common”. Credit: Tash Peterson

Police told 7NEWS.com.au they were investigating an incident that happened in Hillarys at around 2pm.

“During the incident, a 29-year-old woman suffered a bruise to her leg after a ceramic mug was thrown in her direction,” said a spokesperson.

“Inquiries are ongoing.”

The incident comes after Peterson admitted trespassing at last year’s Perth Royal Show.

During the protest, she locked herself in the cattle judging ring and claimed that the event glorified animal slavery.

She will be sentenced in June.

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