If a person has a federal or state warrant out for her arrest, she can be prevented from obtaining a passport. This is intended to prevent the person from fleeing the country and avoiding arrest.
A person can be denied a passport if he is involved in legal proceedings and the judge issues a court order preventing him from obtaining a passport or from leaving the country.
A person can be restricted to a state or court jurisdiction as a condition of parole or probation. In this case, her passport application may be denied until the parole or probation period has ended.
Photos and certain official documents are required as part of a passport application. Submitting an incomplete passport application can prevent you from obtaining a passport.
A person who owes court-ordered child support he hasn't yet paid can be prevented from obtaining a passport. This applies only to past-due (arreared) child support and not future payments.
Submitting fraudulent information, such as a fake birth certificate, can cause a passport application to be denied and prevent a person from obtaining a passport.