Final answer:
In cases involving serious injury or weapons-related injuries, or domestic violence, the appropriate authorities to be contacted are the police and hospital. Family and friends can be contacted for emotional support.
Step-by-step explanation:
In cases involving serious injury or injuries that are weapon-related, or domestic violence, the appropriate authorities to be contacted are:
- Police - They are responsible for maintaining law and order, investigating crimes, and ensuring the safety of individuals.
- Hospital - A hospital should be contacted if there are any serious injuries that require medical attention.
- Family and friends - Family and friends can be contacted for emotional support and assistance in dealing with the situation, but they should not be the primary source of intervention in cases of serious injury or domestic violence.