According to MGL 6E §14(b), under what circumstances should an officer not use deadly force?

The correct answer highlights that an officer should refrain from using deadly force unless de-escalation tactics have been attempted and failed, or if those tactics are not feasible to implement. This principle emphasizes the importance of prioritizing non-lethal alternatives in law enforcement situations. The use of deadly force is a last resort and should only be considered when there are no viable alternatives.

De-escalation tactics are designed to reduce the intensity of a conflict and prevent the necessity of force, promoting safer outcomes for both officers and suspects. This reflects a commitment to the use of appropriate levels of force, aligning with the ethical standards and legal requirements governing police conduct.

The other options focus on various scenarios that could influence the decision to use deadly force but do not align with the specific legal standards established in MGL 6E §14(b) regarding de-escalation tactics. While being unarmed or not being in immediate danger may provide context, they do not encapsulate the comprehensive requirement for officers to first consider de-escalation efforts before resorting to the use of deadly force.