What are your responsibilities if someones going to commit a crime?

If you are aware that someone is about to commit a crime, your primary responsibility is to prioritize safety and prevent harm. You should report the situation to law enforcement or relevant authorities to intervene before the crime occurs. Depending on your relationship with the individual, you may also consider trying to dissuade them from going through with the act. However, avoid putting yourself in danger, and ensure that any actions you take comply with the law.