When is an off-regular-hours activity not in the course of the employment?

The NJ Supreme Court is deliberating on the issue of whether an an employee should receive workers’ compensation if an injured occurred at an off-regular-hours event. The issue presented to the Court was whether an employee is entitled to benefits under the Workers’ Compensation Act, specifically N.J.S.A. 34:15-7, for injuries that occurred while she was volunteering at her employer’s “Family Fun Day” event?