Three protesters were dragged away and booted out after gate-crashing the Prime Minister’s main event in Perth, sparking questions over security.

One of the anti-gas activists made it onto the stage, shouting “disrupt Burrup Hub” and “block Browse” — after a Welcome To Country and before breakfast was served — just metres away from Anthony Albanese, who was preparing to deliver a keynote speech.

Security removed the trio, as music in the room was turned up to drown them out.

Mr Albanese appeared unfazed but said his own security was being increased.

“People have a right to protest, by all means, and express their views but they should do so in a way that it is appropriate,” he said.

“We need also to, as I’ve said continually, we need to turn the temperature down on public debate.

“There is an upgrade going on at the moment at Kirribilli House that’s substantial as a result of the increased environment of threats, which are there. They are real.

“I say to everyone, regardless of your political position, we should be able to have discourse and have debate which is respectful. I don’t duck from attending or engaging in events like this, and it’s a good thing in Australia. I want to be able to go round.”

The protesters appeared to enter the function room without any security checks, despite a large police presence.

WA Police later confirmed the woman and two men, aged 18 and 19, were each issued a move-on notice.

Will Shanahan, 18, has been warned he’ll likely be charged.

“We were issued move on orders for disrupting the peace,” Shanahan said.

“We received a phone call from WA Police saying that they were going to be issuing us a court summons notice for trespassing. So obviously, WA Police is looking to take this further.”

He confirmed he was also among protesters who interrupted Woodside’s AGM in Perth last week, and he had no regrets.

“We’re prepared to face enablers of the climate crisis,” he said.

“I think Australians are being rorted when we’re giving our gas away for free, essentially, to other countries. And I think we could be doing a lot better for ourselves. These companies are making record profits, at a time where Australians are brunting the cost of living.

“We think it’s really important that these sort of events are disrupted in accordance with such drastic outcomes from the decisions that these individuals are making.”

Premier Roger Cook, Woodside boss Liz Westcott, Rio Tinto director and former Treasurer Ben Wyatt and former Premier Mark McGowan were among others gathered in the room for the Chamber of Minerals and Energy WA event.

Outside the hotel a small crowd of other protesters played the drums and held banners, demanding Labor “tax the gas”.

The Chamber of Minerals and Energy WA that organised the event wasn’t concerned that it was targeted, or about security.

“This is a contested area of debate. These are important issues that we’re discussing with the Prime Minister (and) the community is deeply interested in them,” CME WA chief executive Aaron Morey said.

He wouldn’t comment on whether ID checks should have been required to enter the function area.

“That’s not something that I can answer here and now, but certainly Federal Police have been heavily involved, as have local police,” he said.”