What is a situation where use of deadly force may be justified?

The justification for using deadly force is based on the principle of self-defense or defense of others. A situation where there is reasonable cause to believe there is imminent danger of serious harm meets this criterion. This means that if an individual (or an officer) is faced with a credible and immediate threat that could lead to serious injury or death, the use of deadly force becomes a justified response to protect oneself or others from that substantial threat.

In law enforcement and self-defense situations, the perception of imminent danger must be based on observable facts or conditions, not just subjective feelings. This principle ensures that the use of deadly force is reserved for severe situations where there is no other option to prevent serious harm or loss of life. Thus, recognizing the gravity of the threat is crucial in justifying such a serious response.