http://www.dotars.gov.au/transsec/fact_sheet6.aspx
Transport Security
General Aviation
Aircraft theft measures
General aviation aircraft including private/corporate non-jet aircraft that are not required to have a security program will be required to put measures in place to reduce the risk of theft.
Practical measures to mitigate against the risk of theft would be determined by the aircraft operators as appropriate and might include fitting auxiliary locks (for example to propellers or prop controls), securing aircraft in hangers or fitting door locks.
DOTARS Transport Security Investigators will be auditing compliance and undertaking random compliance checking in relation to aircraft anti-theft measures.
Background checking and licensing of pilots
All pilots and trainee pilots will be required to undertake background checking prior to being issued with new photographic licences by 1 July 2004.
Ensuring that pilots and trainee pilots are subject to background checking will reduce the likelihood of persons who might pose a threat to aviation gaining access to aircraft through legitimate means.
The cost of background checking and the photographic licence will be borne by individual pilots. Licences will be valid for two years and will cost around $200.
Please note: Sport aircraft are not included in the category of aircraft required to be secured from theft. Background checking will not be carried out on pilots of sport aircraft and they will not be required to have a photographic licence.