What procedure must be followed when a person in the custody of law enforcement personnel is scheduled to board a flight?

When a person in the custody of law enforcement is scheduled to board a flight, the correct procedure requires that they must be boarded before all other passengers and deplaned last. This protocol ensures the safety and security of both the custody officer and the other passengers. By boarding the individual first, law enforcement personnel can maintain control over the situation and ensure that the person is safely and securely placed on the aircraft without any potential disruptions or security issues among other travelers. Deplaning last ensures that the custody arrangements are preserved until the very end of the flight, minimizing the risk of escape or disturbances during the disembarkation process. This procedure reflects standard security practices to manage individuals in custody effectively while prioritizing the safety of all on board.