Reappointment of Registrar of Administrative Appeals Tribunal

Ms Sian Leathem has been reappointed as the Registrar of the Administrative Appeals Tribunal (AAT) for a further two year term to 6 April 2022.

Ms Leathem commenced as the Registrar of the AAT on 7 April 2015.

Ms Leathem has played a key role in supporting the President of the AAT, the Hon Justice David Thomas, in implementing the restructure of AAT’s corporate and support services, progressing the digital strategy that includes a single case management system, and completing the Registry Transformation Program. Recently, she has supported the President in ensuring the AAT has been responsive in adjusting its procedures and operations to fit the circumstances brought about by the COVID‑19 pandemic.

Following her initial appointment in 2015, Ms Leathem oversaw the amalgamation of the AAT with the former Migration Review Tribunal, Refugee Review Tribunal and the former Social Security Appeals Tribunal on 1 July 2015.

On behalf of the Government I congratulate Ms Leathem on her reappointment.


Prior to her appointment as Registrar of the AAT in 2015, Ms Leathem was the inaugural Principal Registrar of the New South Wales (NSW) Civil and Administrative Tribunal and Registrar of the NSW Workers Compensation Commission. Ms Leathem was also formerly Assistant Registrar of the AAT and has significant legal policy experience across the Commonwealth and NSW public service.

Ms Leathem holds a Bachelor of Arts, Master of Arts (Merit) and Bachelor of Laws (Honours) from the University of Sydney and an Executive Masters of Public Administration from the Australian and New Zealand School of Government.

/Public Release. This material comes from the originating organization and may be of a point-in-time nature, edited for clarity, style and length. View in full here.