Kitchen Knife in a Domestic Call
At 21:45, Officers A and B respond to a domestic disturbance in a second-floor apartment. A 28-year-old man is in the kitchen holding an 8-inch chef's knife and saying, 'I'll cut my own throat.' His mother is outside; no other weapons are visible. Officer A stands in the doorway about 10 feet away; Officer B is in the hallway, and a neighbor watches from across the hall. The man paces and cries, does not obey commands to drop the knife, and then takes two quick steps toward Officer A with the blade held at waist level. Officer A has a Taser, OC spray, and a duty pistol. The hallway is narrow, with only the door frame for cover. Backup is four minutes out. The man is not communicating clearly and has not threatened anyone else.
1. At the moment the man takes two steps toward Officer A with the knife, what force options are reasonable, and what factors drive the decision?
Read the worked answer
Use of force is judged by objective reasonableness under the totality, including the immediate threat, the severity of the situation, and whether the subject is actively resisting or attempting to evade arrest. A knife at roughly 10 feet is a deadly-force threat because a person can close that distance in about one to two seconds. Officer A should not wait to be stabbed, but the two steps are not automatically a shooting decision. Factors include blade orientation, whether the man is advancing or stumbling, commands, the narrow hallway, the neighbor in the hall, the backstop, and the presence of a cover officer.
Reasonable options: continue loud, clear commands; step back and use the door frame as cover or a barrier; have Officer B cover with a less-lethal or lethal option from a different angle; deploy a Taser only if there is a second officer providing lethal cover and the probe spread is viable; OC spray is unlikely to stop a committed knife attack. If the man continues to advance and the officer reasonably believes deadly force is necessary to prevent death or serious bodily injury, deadly force is justified. If he stops or turns away, reassess and use time and distance. The mental-health crisis affects tactics and de-escalation but not the objective threat.
2. What de-escalation and crisis-intervention steps should be taken before and during this encounter, and what are their limits?
Read the worked answer
Before contact, gather information from the mother: history, medications, recent stressors, prior violence, and whether a weapon is involved. Use a single communicating officer, a calm voice, and simple choices: 'Put the knife on the floor and we can talk.' Keep cover and distance, avoid crowding, and ask the man what he needs. A co-responder or mental-health professional can be requested, but not at the cost of delaying a safe resolution.
Limits: de-escalation does not require officers to remain within knife range or to holster behind cover. If the man advances, the threat controls. The officer should narrate commands and the man's actions for the camera and witnesses. After the incident, document what was tried, what failed, and why. Crisis intervention is not a script; it is a set of tactics that must be abandoned when imminent danger makes them unsafe. The neighbor in the hall is a reason to move the contact away from the doorway if possible, not a reason to delay protecting the officers and the man.
3. What post-force duties apply after the encounter?
Read the worked answer
Once the threat is stopped, render aid: control bleeding, start CPR if needed, call EMS, and request a supervisor. Secure the knife and any other weapons. Separate the officers so they can give independent statements, and preserve body-worn camera and any nearby video. The supervisor should manage the scene, identify witnesses, photograph injuries and the scene, and follow the agency's use-of-force investigation policy. If a less-lethal device was used, document deployment, probes or cartridges, and medical follow-up.
Officers have a duty to intervene if another officer uses excessive force, and a duty to report it. Documentation should be factual: what the officer perceived, what commands were given, what force was used, and what changed the threat. Avoid conclusory labels such as 'suspect was combative' without describing the actions. If the man is a danger to himself or others, a mental-health hold may be appropriate after medical clearance; the officer should follow state law and agency policy. Finally, consider officer wellness and a debrief, but do not let peer discussion alter the written record.