Mention the 5 main components of an effective safety and health program to prevent workplace violence.

1. Risk Assessment – Conducting a thorough risk assessment within the workplace is critical in identifying potential threats, understanding their root causes, and developing strategies for addressing them. It can be anything from reviewing policies and procedures, to interviewing staff.

2. Training – Providing employees with adequate training around recognizing signs of aggression or violent behavior as well as how to respond appropriately when it occurs is essential in preventing workplace violence. Also, offering education about topics like stress management or conflict resolution can create a harmonious workplace.

3. Communication – Establishing open lines of communication between both employees and supervisors helps foster an atmosphere of trust where any issues can be discussed without fear of repercussions or judgement; this allows for grievances to be addressed quickly which may help diffuse any tension before it escalates into something more serious.

4. Policies & Procedures – Developing clear policies outlining what constitutes acceptable behavior at work and how violations should be dealt with helps set expectations for everyone involved while also helping maintain consistency throughout the organization if issues arise. 

5. Monitoring & Evaluation – Putting systems in place that allow for regular monitoring and evaluation enables organizations to identify any areas that need improvement while also verifying that existing policies are being followed accordingly.