Persons applying for sensitive jobs, like at the airport, hospital, school, financial institution or in law enforcement, must submit to a detailed background investigation. Consequently, many people do not apply, knowing they will be washed out.
Among those who do apply, a significant number are rejected at the conclusion of the investigation. Derogatory information may be developed when a criminal history is revealed, a poor credit record, past employment problems or disqualifying information from a reference, relative or neighbor comes to light.