The Australian government has introduced retroactive legislation to Parliament that would allow the suspected killer of an Australian woman strangled and stabled to death in Brunei 21 years ago to face trial in Australia.

No one has ever been charged over the death of Anthea Bradshaw-Hall, who was killed while visiting her husband Jeff Hall in the Southeast Asian country in 1994.

Government Minister Chris Pyne said the bill introduced Thursday would be passed this year. It would allow Australian courts to hear murder and manslaughter trials for Australian victims killed overseas regardless of when.

While Brunei prosecutors have said they have insufficient evidence to bring the killer to justice, Australian authorities say they could prosecute.

For legal reasons, Australian authorities have not publicly identified the case's sole suspect.