Police department plays a very important part in social community. Their major responsibility is to ensure that the law is observed everywhere. There are many further divisions in police departments and you would be required to have a certain qualification for a certain post. If you want to become a police officer then you have to pass police training exam, which would test your theoretical knowledge, physical strength, and medical fitness. Police jobs are available in great number and these officials have high salaries and enjoy numerous government benefits. The duty of a police officer is to catch criminals and then present them in courts for a trial. They are responsible to get to a crime scene and handle the situation immediately while keeping civilians safe. Police officers investigate a case very carefully, collect evidences against criminal, and present them in the court. Moreover, police officers are expected to help a victim of any accident or disaster and immediately arrange to provide them medical treatment and protection. They also look after prisoners and maintain the discipline in jails. A police officer stays in public so that they can keep an eye on the roads and make sure that no-unlawful activity is taking place there.