Generally, border agents are authorized to use force in specific circumstances to enforce the law and protect themselves and others. The rules and regulations governing the use of force vary from country to country. In the United States, for example, border agents are subject to the federal law and policies of the Department of Homeland Security.
The specific circumstances under which border agents can use force and where they can use it depend on the country's laws, policies, and procedures. It's important to consult the relevant legal sources and guidelines for accurate information.
It is worth noting that the use of force by border agents is a sensitive topic, and there can be debates and discussions around its legality, necessity, and potential abuses.