A subject's known mental illness precludes the use of deadly force, or at a minimum requires officers to try options other than deadly force.

• A. A subject's known mental illness precludes the use of deadly force.
• B. Mental illness should dramatically override officer safety concerns.
• C. An officer should always de-escalate irrespective of threat due to mental illness.
• D. Mental illness must be diagnosed in order to consider force options.

Answer: (A)

When dealing with a subject who may have mental illness, the guiding idea is to prioritize de-escalation and the least amount of force necessary to keep everyone safe. The statement that a subject’s known mental illness precludes the use of deadly force reflects the training emphasis to seek non-lethal or less-harmful options first whenever possible. It conveys that mental health context should steer the response toward restraint, communication, and alternatives rather than jumping to lethal measures at the earliest opportunity.

This approachfits because it centers on proportionality and safety: use deadly force only when there is an immediate, unavoidable threat to life that cannot be mitigated by other means. It also promotes treating the situation with the expectation that a crisis can be de-escalated, if feasible, rather than assuming lethal force is the default.

The other ideas aren’t as aligned with this focus. They imply mental illness automatically overrides safety, require always de-escalating regardless of risk, or demand a formal diagnosis before force considerations can be made. In real scenarios, decisions are driven by observable risk and available options, not solely by labels, and force choices are made to protect life while trying to minimize harm.