What term is used for a probationer who disappears from the oversight of a probation officer?

The term used for a probationer who disappears from the oversight of a probation officer is "absconder." An absconder typically refers to an individual who has violated the terms of their probation by failing to report to their assigned probation officer, thereby evading supervision and accountability. This is a significant concern in probation management since tracking and rehabilitating individuals on probation is crucial for maintaining public safety and ensuring compliance with judicial orders.

While "fugitive" may imply someone who is actively fleeing from law enforcement, it does not specifically relate to probationary status. "Evader" suggests someone who avoids duties or responsibilities but is not a commonly used term in the context of probation. "Defector" refers to someone who abandons loyalty to a cause or country and is not applicable to the scenario of a probationer evading supervision. Therefore, in the context of probation oversight, "absconder" is the most accurate term.