Notorious vegan activist Tash Peterson has terrorised diners at Northbridge’s Outback Jacks steakhouse dressed in a white apron and pants splattered with fake blood.

A confronting video posted online by Ms Peterson on Saturday night shows her entering the restaurant, blaring distressing sounds of farm animals — which she says are from Australian slaughter houses — from a portable speaker.

In her latest stunt, the hardline activist proceeded to circle around patrons eating their meals and shouted at them: “There is blood on your hands if you’re not a vegan”.

The West Online's Kate Phillips has the details.