For an injury to be compensable under a workers compensation law, the standard test is that it must:

解析

Two elements must both be satisfied: a causal connection between the work and the injury, and a connection of time, place and circumstance showing the worker was doing the job. An injury on the employer's own premises can still fail the test if it was purely personal, and an injury far off premises can pass it if the worker was on the employer's business. Neither a supplied tool nor a sudden event is required.