What does 'En route with prisoner' indicate about a unit's status?

The phrase "En route with prisoner" specifically indicates that a law enforcement unit is actively engaged in the transportation of an inmate. This status implies that the unit is moving from one location to another while accompanying an individual in custody, which is a critical aspect of police operations. It conveys to dispatch and other units that the officers are currently involved in this task and may not be available for other calls or duties until the transportation is completed.

Understanding this terminology is essential for effective communication among law enforcement personnel, as it helps manage resources and ensure the safety of both the officers and the individuals being transported. The other options do not accurately reflect the unit's involvement in prisoner transport, which is the key aspect signified by the phrase.