A police officer protects the safety of his or her fellow citizens. A police officer guards our property and our streets and sometimes risks his or her life or severe injury in doing so. It is sad but there are bad people who try to make their way by hurting others or by taking what belongs to others. Police officers try to prevent those people from doing those things or, when they cannot be prevented, to find the people who have done such things and bring them to justice. By bring them to justice is meant to bring them to court to have their fellow citizens determine whether they did the thing of which they are accused and, if so, to decide what punishment should be given to them.
Police officers perform many duties.
Besides crime prevention and detection, they act as safety officers on our streets and highways. They also rescue people who are in danger of being hurt. Police officers are our friends and protectors. Without them, there would be no safety. People would be unable to travel or to work or play or go to school for fear that they would not be safe from the harm caused by bad people and by accidents.