Which of the following is NOT a permissible reason for using deadly force?

Using deadly force is permissible under specific circumstances outlined by law and policy, primarily focusing on the protection of life. The option that states "to protect an officer’s dignity" is not an acceptable justification for the use of deadly force. This concept pertains to an officer's personal feelings or reputation rather than the immediate necessity to prevent severe harm or protect oneself or others from a substantial threat.

Justifications for deadly force typically include actions taken in defense against an imminent life-threatening attack or to prevent the escape of a suspect known to pose a serious danger to the public or officers. Similarly, deadly force may be employed when necessary to effect an arrest under certain dangerous conditions. In contrast, the reasoning behind protecting an officer's dignity does not meet the legal threshold required to justify the use of lethal measures, as it does not relate to immediate physical threats to lives.