Responsibility of the police include which of the following?

Here's something I found on the internet, hope it answers the question.

Law enforcement is the group of people tasked with the prevention of crime and apprehension of offenders. As part of law enforcement, police officers have four major responsibilities: enforcing laws, preventing crimes, responding to emergencies, and providing support services.

no every country is held to the same degree as others just some member countries such as the usa and germany are more economically sound so the need to show there support to all others