Anshun estoppel applies to proceedings under the Workers Compensation Act 1987 (NSW) and Workers Compensation Act 1998 (NSW) where the dispute concerns the whole issue of liability to pay compensation, and claimants who fail to raise alternative bases for the same relief in initial proceedings risk being estopped from raising them later.
The full text is available to signed-in members, including the 6 later cases that cite this judgment.
1 of the 6 citing cases carry a classified treatment. How each court treated it is available to signed-in members.