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Cal Fire Law Enforcement and Investigations Division

Definition

The specialist investigative division of the California Department of Forestry and Fire Protection responsible for wildfire origin-and-cause investigation, with peace-officer powers, across California state lands and local jurisdiction wildland fires.

Related terms

Devil's Eye Burn Pattern
The almond-shaped fire perimeter produced by a wind-driven wildfire, with the ignition point (heel) at the narrow end and the fire head...
Heel of a Fire
The narrow, closed end of a wind-driven wildfire's elliptical burn perimeter, closest to the ignition point; the investigator works from the outer...
Ignition-Point Clustering Analysis
A spatial statistical analysis applied to a series of suspected wildfire arson incidents, examining whether the geographic distribution of identified ignition points...
Multiple Origin Areas
Two or more separate, unconnected zones of fire origin in a structure, each with independent burning evidence; the strongest physical indicator of...
Negative-Corpus Argument
An invalid standalone conclusion in fire investigation that a fire was incendiary because no accidental cause was identified; rejected by NFPA 921...
Pour Pattern
A burn-through pattern in floor material or seat fabric produced by a liquid accelerant poured on the surface before ignition; produces a...
Time-of-Day Analysis
A statistical tool in wildfire arson investigation that compares the time-of-report distribution for suspected arson fires against confirmed accidental fires in the...
Trailer Evidence
A physical pathway of combustible material laid between two ignition areas in a structure arson to allow a single ignition act to...
Undetermined Cause
The correct fire cause classification when a fire investigator cannot identify a specific accidental cause but also has no positive physical evidence...

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