(1)         A person is a "worker" if the person carries out work in any capacity for a person conducting a business or undertaking, including work as—

            (a)         an employee; or

            (b)         a contractor or subcontractor; or

            (c)         an employee of a contractor or subcontractor; or

            (d)         an employee of a labour hire company who has been assigned to work in the person's business or undertaking; or

            (e)         an outworker; or

            (f)         an apprentice or trainee; or

            (g)         a student gaining work experience; or

            (h)         a volunteer; or

                  (i)         a person of a prescribed class.

        (2)         For the purposes of this Act, a police officer is—

            (a)         a worker; and

            (b)         at work throughout the time when the officer is on duty or lawfully performing the functions of a police officer.

        (3)         The person conducting the business or undertaking is also a "worker" if the person is an individual who carries out work in that business or undertaking.