Regarding Neutral Risk Doctrine
Case law has divided criminal acts and violence which cause injury to an employee into three categories: (a) purely personal risks; (b) mixed or industrial risks, and (c) neutral risks. Both neutral and mixed risks result in industrial caused injuries or death claims. If the injury is shown to be caused by a purely personal motive, then the injury is not industrial. For instance, a marital dispute merely played out at the place of employment as a stage.