Principal employer, contractor and subcontractor. Principal employer, contractor and subcontractor. When any principal employer procures any work to be done wholly or in part for him by a contractor, or through him by a subcontractor, and the work so procured to be done is a part or process in the trade or business of such principal employer, and is performed in, on or about premises under his control, such principal employer shall be liable to pay all compensation under this chapter to the same extent as if the work were done without the intervention of such contractor or subcontractor.
Section makes each one of a chain of contractors liable to the employee.
He need not sue his immediate employer first. Conditions to liability of principal employer. When one is an employee and not a contractor. Independent contractor not subject to control of employer. Independent contractor not servant at time of injury.