British man dies in ‘nightmare’ accident during own engagement party in Australia

British national Liam Trimmer died in Australia (Facebook)

A British man who moved to Australia to become a police officer has died in an accident during his engagement party.

Liam Trimmer, 29, died on Sunday at his home in Western Australia during a party with friends and family to announce his engagement.

The senior constable reportedly slipped and fell to the ground, cutting open his carotid artery.

Those gathered for the celebrations rushed to save Trimmer, but he died from heavy bleeding shortly before the paramedics could arrive at the scene, the police said.

Trimmer was described as an “extraordinary officer” by police commissioner Col Blanch, who said the officer’s friends and family did their best to save him.

It was not immediately clear how the police officer fell and suffered the fatal neck wound, which has prompted an inquest to be opened.

“Everything was done to try and save him, but it wasn’t to be and I know everyone that was involved are really, really hurting at the moment and I think they wish they could just wake up from this nightmare,” the commissioner told 9News.

“This extraordinary officer loved helping the community and was a fine example of WA [Western Australia] policing and it’s just such a tragedy. A very, very confident, capable young man with his whole life ahead of him, and that’s how sad this is.”

Mr Trimmer moved to Australia in 2013 and graduated from Joondalup police academy, before relocating to Kalgoorlie.

He joined the Gang Crime squad and tactical response group in the force and became prominent in the local community.

The Western Australia police union described Trimmer as a “valued member of the blue family”, adding that his death has been an “awful, awful tragedy”.

“Every time a death occurs for a police officer, it doesn’t matter how, it really does rock the core of the police family,” union president Paul Gale told reporters.

Trimmer’s body has been sent for autopsy, law enforcement authorities said. The health, welfare and safety division of the Western Australia police will provide support to his family and colleagues impacted by his death, a spokesperson added.