Communities around the world have laws. Police officers have the authority to make sure that those laws are followed so that communities stay safe. They are available 24 hours a day if someone needs their help. Police officers spend a lot of time in the neighborhoods that they patrol, getting to know the people that live there and teaching them how to keep themselves from becoming victims of crime. This book explains what police officers do in their communities and why it's important to obey the law. Relevant photographs aid readers in making textual connections.