There are numerous public services and security job descriptions and positions specific for certain job roles. Public service and Security are usually not interchangeable terms, but they do have much in common. Public services include all the services provided by the government to people living within its jurisdiction. Public services hire the wide range of employees and people with many different skills. It is also one of the industries that will never die, so the demand for public service professionals with good skills, knowledge and experience will always be there.