Risk Management Considerations for Managing the Risks of Workplace Violence

So, as an employer you have done your risk assessments, put your workplace violence and harassment policies in place, and trained all of your employees. You have a competent person for employees to contact when at risk, and someone of the same level of competence leading the investigations. You then find that you have an employee that has a tendency to act violently, or an employee is being abused by their partner at home, or you have a manager that has been abusing an employee. Where do you go from here?