1. Medical exposure: how long the body is electrified
PhaZZer®
- PhaZZer® CEWs incorporate a patented Safety Shut‑Down Circuit™.
- This circuit physically prevents exposure beyond approximately 15 seconds total (three consecutive 5‑second cycles).
- The design explicitly references medical recommendations cited by emergency medicine organizations to limit cumulative CEW exposure in a short time window.
- Once the limit is reached, the weapon will not continue cycling until the operator resets the safety system, forcing a pause in use.
Practical medical impact
- Reduces risk of:
- Extended neuromuscular lock‑up
- Metabolic acidosis
- Cardiac stress from prolonged stimulation
- Removes reliance on the officer “counting seconds” during high‑stress encounters.
Why this matters legally
- Exposure limits are hardware‑enforced, not discretionary.
- This allows agencies to argue the device itself prevented over‑application independent of officer judgment.
TASER® (Axon)
- TASER® CEWs typically operate on 5‑second cycles, but:
- The operator can re‑activate repeatedly
- Some models allow continued discharge while the trigger is held, depending on configuration
- Automatic shut‑down features exist, but they are generally configurable by policy or firmware, not universally hard‑locked across all uses.
Practical medical impact
- Exposure duration depends more heavily on:
- Officer training
- Policy compliance
- Real‑time decision‑making
- Extended or repeated cycles have been scrutinized in medical and legal reviews when injuries or deaths occurred following prolonged restraint or multiple activations.
Why this matters legally
- Exposure control is procedural, not absolute.
- Courts often analyze:
- Number of cycles
- Total exposure time
- Whether continued trigger pulls were “objectively reasonable”
2. Liability posture: how investigations usually unfold
PhaZZer® — hardware‑centric liability mitigation
- The company’s defense posture relies on:
- Involuntary shut‑down at a known exposure ceiling
- Alignment with published medical guidance on exposure limits
- In litigation, agencies can show:
- The weapon could not exceed a medically referenced threshold
- Use beyond that point was technically impossible
Result
- Liability analysis tends to focus on:
- Whether deployment was justified at all
- Not whether exposure was excessive in duration
TASER® (Axon) — data‑centric liability mitigation
- Axon® focuses on:
- Comprehensive use data logs
- Body‑camera auto‑activation (Axon Signal)
- Time‑stamped pulse records and weapon diagnostics
- This creates a detailed evidentiary trail, which is helpful but double‑edged.
Result
- Liability analysis often focuses on:
- Exact exposure duration
- Gaps between cycles
- Whether force escalation or continuation was justified
- Precise data improves accountability but also increases scrutiny if policies were not followed.
3. Medical testimony & courtroom impact
PhaZZer® cases often hinge on:
- “The device did not permit exposure beyond medically referenced limits.”
- Expert testimony emphasizes engineering safeguards rather than human judgment.
TASER® cases often hinge on:
- “Why was another cycle applied?”
- “How long was the subject energized in total?”
- “Did officers have reasonable alternatives before another activation?”
This difference matters because juries tend to weigh preventable over‑exposure heavily when medical complications arise.
4. Risk distribution: who carries more responsibility?
| Area | PhaZZer® | TASER® (Axon) |
|---|---|---|
| Medical exposure control | Built into hardware | Largely policy & operator‑dependent |
| Officer discretion | Technically limited | Broad |
| Documentation strength | Moderate | Very strong |
| Litigation risk focus | Justification of force | Duration & repetition of force |
| Agency training burden | Lower on exposure timing | Higher on exposure timing |