29-year-old police constable Liam Trimmer died in a tragic accident at his engagement party after sustaining a fatal neck injury.

Trimmer, a UK native, was a member of Western Australia's tactical response group with the police force since 2013.

Col. Blanch, the Police Force Commissioner, praised Trimmer as a promising and capable officer.

Trimmer's death has deeply impacted his colleagues at the Western Australia Police Force and the wider community.

The Western Australia Police Union has extended its condolences to Trimmer's family, friends, and colleagues.

An official inquest is set to investigate the circumstances surrounding Trimmer's death, with a coroner's statement anticipated.