Signal 4: Police Code Details
Most Common Meaning: Carbon Monoxide
Used this way by: 50% of agencies on this page
Used in: 2 agencies across 2 states
Category: Emergency
Consensus: MediumMost agencies use this code similarly, but some regional or agency variations exist.
Code Distribution Breakdown
Carbon Monoxide: 50% (1 agency)
Investigate (Fire, Burning, Smoke, etc.): 50% (1 agency)
All Recorded Usages of Signal 4
2 agencies across 2 states