A former Australian pilot accused of training the Chinese military has tried once more to invalidate a federal police raid on his home.
The Australian Federal Police executed a search warrant and seized items from the home of Keith Andrew Hartley, chief operating officer of the Test Flying Academy of South Africa (TFASA), in November.
The warrant said Hartley was suspected of breaking commonwealth law by organising and facilitating training to PLA pilots "in regard to military aircraft platforms and military doctrine, tactics and strategy".
Mr Hartley's Federal Court bid to quash the warrant was dismissed in April.
He has now filed an appeal in the Full Court seeking to set aside this dismissal.
Ultimately, he intends to invalidate the warrant and restrain the AFP from using any material seized from his South Australian home.
Mr Hartley's sole ground of invalidity was the allegation that the warrant did not sufficiently state an offence.
In her judgment tossing the challenge, Justice Wendy Abraham disagreed.
"It states conduct capable of constituting an offence, and it does so with a reasonable degree of precision," she wrote.
Another ex-pilot Daniel Edmund Duggan, 54, is in custody and has also been accused of aiding the Chinese military.
He faces extradition to the United States, where he will face charges of violating arms export laws and money laundering, which he denies.
Duggan's case is progressing through the Local Courts where a magistrate will determine his eligibility for surrender to the US.
His lawyers have said they intend to stay the case after raising questions about how Duggan was "lured" back to Australia shortly before his arrest.