It is mandatory for employers to have a workers compensation
policy to cover their workers in the event of injury.
That said, whilst it is not a common occurrence, sometimes a
worker is injured at work only to find out that their employer has
failed to obtain or maintain an insurance policy for workers
compensation.
Under the workers compensation laws, if an employer is
uninsured, it is possible to make a claim for compensation against
the "nominal insurer".
In these cases, a worker will need to complete a Workers Injury
Claim Form (available on the SIRA website: https://www.sira.nsw.gov.au/).
The injured worker will also need to see their General Practitioner
to obtain a Certificate of Capacity, which is also available on the
SIRA website.