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Utilities
8 min read
Areas of Expertise :
Electrical Engineering, Fire Origin & Cause, Wildfire, Utilities, Power Line
Published Date:
Last Modified Date:
Jurisdiction:
California State
Court:
In November 2018, the Camp Fire tore through Butte County, California, becoming the deadliest and most destructive wildfire in the state’s history. Investigators traced the ignition to the area beneath PG&E transmission tower No. 27/222 in the Feather River Canyon, where a failed suspension “C-hook” allowed a live 115 kV conductor to detach and arc against the steel tower. Molten metal fell into the dry vegetation below and ignited the fire. Driven by strong winds and critically dry conditions, the Camp Fire spread rapidly, killing 85 people and destroying more than 18,000 structures across roughly 153,000 acres. The failure of that transmission component became a central fact in explaining how a utility equipment defect could trigger catastrophic loss.
The legal fallout for Pacific Gas and Electric Company placed renewed focus on utility infrastructure oversight, maintenance practices, and wildfire risk management. A special criminal grand jury convened in March 2019 and went on to review testimony from nearly 100 witnesses along with more than 1,600 exhibits. In June 2020, PG&E was indicted on 85 felony counts, including 84 counts of involuntary manslaughter and one count alleging that the company unlawfully caused the Camp Fire through negligent operation of its electrical equipment. PG&E later pleaded guilty to those charges. More than a major wildfire prosecution, the case became a leading example of how neglected utility infrastructure can produce both mass-casualty consequences and criminal accountability.
The Camp Fire began at approximately 6:15 a.m. near PG&E transmission tower 27/222 in the Feather River Canyon. Fueled by strong Jarbo Winds and critically dry conditions, the fire moved rapidly toward Paradise and nearby communities. Within hours, Pulga, Concow, and Paradise were overwhelmed, triggering mass evacuations, widespread destruction, and major loss of life.
Cal Fire and the Butte County District Attorney’s Office concentrated early attention on the area beneath tower 27/222 and treated it as a potential crime scene. Investigators documented the detached conductor and preserved the broken suspension “C-hook” as key physical evidence. That early evidence preservation later became central to the official findings on the fire’s origin and cause.
A special investigative grand jury made up of 19 Butte County citizens was sworn in to examine PG&E’s potential liability in connection with the Camp Fire. In the months that followed, jurors heard testimony from nearly 100 witnesses and reviewed thousands of pages of records and exhibits. The evidence focused on PG&E’s equipment, maintenance history, and wildfire risk practices.
In June 2020, the grand jury indicted PG&E on 85 felony counts arising from the Camp Fire. The charges included 84 counts of involuntary manslaughter and one count alleging that the company unlawfully caused the fire through negligent operation of its electrical infrastructure. The indictment also included enhancements tied to injuries and property damage.
Later that same month, PG&E pleaded guilty to all 85 felony counts. The plea formally acknowledged the company’s responsibility in connection with the Camp Fire and marked one of the most significant wildfire-related prosecutions ever brought against a utility. It also demonstrated the legal consequences that can follow when infrastructure failures contribute to mass-casualty disasters.
Superior Court of California, County of Butte
Case Name:
People of the State of California v. Pacific Gas and Electric Company
Electrical Defects
Electrical Fires
Electric Power Lines
Fire Cause and Origin Investigations
Forest Fire
Utility Accidents
Forensic Inspections
Emergency Evacuations
Natural Disasters
Safety Engineering
In November 2018, the Camp Fire tore through Butte County, California, becoming the deadliest and most destructive wildfire in the state’s history. Investigators traced the ignition to the area beneath PG&E transmission tower No. 27/222 in the Feather River Canyon, where a failed suspension “C-hook” allowed a live 115 kV conductor to detach and arc against the steel tower. Molten metal fell into the dry vegetation below and ignited the fire. Driven by strong winds and critically dry conditions, the Camp Fire spread rapidly, killing 85 people and destroying more than 18,000 structures across roughly 153,000 acres. The failure of that transmission component became a central fact in explaining how a utility equipment defect could trigger catastrophic loss.
The legal fallout for Pacific Gas and Electric Company placed renewed focus on utility infrastructure oversight, maintenance practices, and wildfire risk management. A special criminal grand jury convened in March 2019 and went on to review testimony from nearly 100 witnesses along with more than 1,600 exhibits. In June 2020, PG&E was indicted on 85 felony counts, including 84 counts of involuntary manslaughter and one count alleging that the company unlawfully caused the Camp Fire through negligent operation of its electrical equipment. PG&E later pleaded guilty to those charges. More than a major wildfire prosecution, the case became a leading example of how neglected utility infrastructure can produce both mass-casualty consequences and criminal accountability.
The Camp Fire began at approximately 6:15 a.m. near PG&E transmission tower 27/222 in the Feather River Canyon. Fueled by strong Jarbo Winds and critically dry conditions, the fire moved rapidly toward Paradise and nearby communities. Within hours, Pulga, Concow, and Paradise were overwhelmed, triggering mass evacuations, widespread destruction, and major loss of life.
Cal Fire and the Butte County District Attorney’s Office concentrated early attention on the area beneath tower 27/222 and treated it as a potential crime scene. Investigators documented the detached conductor and preserved the broken suspension “C-hook” as key physical evidence. That early evidence preservation later became central to the official findings on the fire’s origin and cause.
A special investigative grand jury made up of 19 Butte County citizens was sworn in to examine PG&E’s potential liability in connection with the Camp Fire. In the months that followed, jurors heard testimony from nearly 100 witnesses and reviewed thousands of pages of records and exhibits. The evidence focused on PG&E’s equipment, maintenance history, and wildfire risk practices.
In June 2020, the grand jury indicted PG&E on 85 felony counts arising from the Camp Fire. The charges included 84 counts of involuntary manslaughter and one count alleging that the company unlawfully caused the fire through negligent operation of its electrical infrastructure. The indictment also included enhancements tied to injuries and property damage.
Later that same month, PG&E pleaded guilty to all 85 felony counts. The plea formally acknowledged the company’s responsibility in connection with the Camp Fire and marked one of the most significant wildfire-related prosecutions ever brought against a utility. It also demonstrated the legal consequences that can follow when infrastructure failures contribute to mass-casualty disasters.
Electrical engineering analysis was central to understanding how the Camp Fire began. In a case involving the failure of a suspension “C-hook” and the release of a live conductor from tower 27/222, experts in electrical systems and utility infrastructure would be expected to evaluate component failure, inspection history, and whether PG&E’s maintenance practices met accepted industry standards.
Fire origin investigators played a direct role in tracing the ignition point to the area beneath the transmission tower. Cal Fire investigators, working with other personnel at the scene, documented the physical evidence, examined the detached conductor, and helped establish the sequence of events that linked the equipment failure to the fire’s outbreak.
Victim identification required advanced forensic DNA work because many remains had been exposed to extreme thermal damage. CSU Chico and UC-affiliated forensic teams used Rapid DNA and STR-based analysis on bone and tissue samples, helping identify a large number of victims in circumstances where conventional methods were often unavailable or incomplete.
These experts are typically consulted to evaluate community preparedness and response. NIST’s NETTRA case study showed failures and bottlenecks in Paradise’s evacuation system, despite robust pre-fire planning, and analyzed traffic flow, notification timing, and temporary refuge areas.
Medical examiners, forensic odontologists, and related experts contributed to post-disaster identification efforts through dental comparison, radiographic review, and analysis of physical remains. Because of the severity of the fire, these methods had limited usefulness in many instances, which made DNA-based identification especially important.
The Camp Fire prosecution showed that a utility can face felony exposure when long-term maintenance failures are tied to a mass-casualty disaster. In this case, the grand jury process helped prosecutors develop the factual record behind the involuntary manslaughter counts and the allegation that PG&E unlawfully caused the fire through negligent operation of its electrical equipment. The case also shows the importance of early coordination between fire investigators and prosecutors when infrastructure failure results in widespread death and destruction.
One of the most important early steps in the Camp Fire investigation was securing the ignition area and preserving the damaged transmission equipment found there, including the failed suspension C-hook. That evidence helped investigators identify both the point of origin and the mechanical failure linked to the fire’s start. In cases involving suspected electrical defects, early preservation of physical infrastructure can play a decisive role in proving causation.
The Camp Fire investigation benefited from coordination between the Butte County District Attorney’s Office and the California Attorney General, along with the use of a special investigative grand jury. That structure gave prosecutors a stronger way to gather testimony and examine PG&E’s records, equipment history, and internal practices. In complex utility negligence cases, joint investigative efforts and grand jury tools can be especially valuable when the relevant evidence is technical, internal, or difficult to obtain quickly.
Causation in the Camp Fire case did not rest on one type of evidence alone. Fire origin findings, electrical equipment analysis, and forensic identification work all contributed to the broader evidentiary record. The case shows why attorneys handling utility-fire litigation and other infrastructure disasters often need a multidisciplinary technical strategy early in the matter rather than relying on a single expert lane.
Prosecutors did not frame the Camp Fire as an isolated event. PG&E’s broader safety history, including prior regulatory and operational failures, provided additional context for the negligence allegations. In similar litigation, evidence of earlier violations, enforcement actions, or repeated safety problems can help support the argument that the underlying failure was part of a larger pattern rather than a one-time breakdown.
The Camp Fire was more than a devastating wildfire. It became a major legal reckoning over what can happen when utility infrastructure is not properly maintained in high-risk conditions. With 85 people killed, entire communities destroyed, and PG&E ultimately facing prosecution, the case showed how failures in inspection, maintenance, and risk prevention can produce both catastrophic human loss and significant legal exposure.
The case also showed the central role of technical and forensic analysis in large-scale disaster litigation. Investigators and forensic contributors helped trace the fire to failed transmission equipment, explain how the ignition occurred, and support the difficult process of victim identification. Their work gave the court a clearer record of both causation and consequence. For attorneys handling wildfire, utility, and other mass-disaster matters, the Camp Fire remains a powerful example of how technical evidence can shape liability and accountability.
What caused the 2018 Camp Fire in California?
Investigators found that the Camp Fire began when a broken suspension hook failed on PG&E’s transmission equipment. That failure allowed a live high-voltage line to detach, arc, and ignite the dry vegetation below. In practical terms, the wildfire began with a utility equipment failure.
How many people died in the Camp Fire?
The Camp Fire killed 85 people, making it the deadliest wildfire in California history. Many victims were caught in homes, vehicles, and evacuation routes as the fire moved rapidly through Paradise and nearby communities.
Was PG&E found liable for the Camp Fire?
Yes. In 2020, PG&E pleaded guilty to 85 felony counts, including 84 counts of involuntary manslaughter. The plea amounted to an admission that the company’s failure to properly maintain its transmission equipment played a direct role in causing the fire.
What kinds of expert analysis were important in the Camp Fire case?
The case involved several forms of technical and forensic analysis. These included fire origin investigation, electrical engineering analysis, and forensic identification work such as DNA testing and odontology. Together, those efforts helped explain how the fire started and how many victims were identified.
What legal strategies were used against PG&E?
Prosecutors used a special investigative grand jury, coordinated closely with fire investigators, and relied on records and witness testimony to examine PG&E’s maintenance practices. They also used the company’s broader safety history to support the argument that the Camp Fire was not an isolated failure.
How were victims identified after the Camp Fire?
Electrical engineering analysis was central to understanding how the Camp Fire began. In a case involving the failure of a suspension “C-hook” and the release of a live conductor from tower 27/222, experts in electrical systems and utility infrastructure would be expected to evaluate component failure, inspection history, and whether PG&E’s maintenance practices met accepted industry standards.
Fire origin investigators played a direct role in tracing the ignition point to the area beneath the transmission tower. Cal Fire investigators, working with other personnel at the scene, documented the physical evidence, examined the detached conductor, and helped establish the sequence of events that linked the equipment failure to the fire’s outbreak.
Victim identification required advanced forensic DNA work because many remains had been exposed to extreme thermal damage. CSU Chico and UC-affiliated forensic teams used Rapid DNA and STR-based analysis on bone and tissue samples, helping identify a large number of victims in circumstances where conventional methods were often unavailable or incomplete.
These experts are typically consulted to evaluate community preparedness and response. NIST’s NETTRA case study showed failures and bottlenecks in Paradise’s evacuation system, despite robust pre-fire planning, and analyzed traffic flow, notification timing, and temporary refuge areas.
Medical examiners, forensic odontologists, and related experts contributed to post-disaster identification efforts through dental comparison, radiographic review, and analysis of physical remains. Because of the severity of the fire, these methods had limited usefulness in many instances, which made DNA-based identification especially important.
The Camp Fire prosecution showed that a utility can face felony exposure when long-term maintenance failures are tied to a mass-casualty disaster. In this case, the grand jury process helped prosecutors develop the factual record behind the involuntary manslaughter counts and the allegation that PG&E unlawfully caused the fire through negligent operation of its electrical equipment. The case also shows the importance of early coordination between fire investigators and prosecutors when infrastructure failure results in widespread death and destruction.
One of the most important early steps in the Camp Fire investigation was securing the ignition area and preserving the damaged transmission equipment found there, including the failed suspension C-hook. That evidence helped investigators identify both the point of origin and the mechanical failure linked to the fire’s start. In cases involving suspected electrical defects, early preservation of physical infrastructure can play a decisive role in proving causation.
The Camp Fire investigation benefited from coordination between the Butte County District Attorney’s Office and the California Attorney General, along with the use of a special investigative grand jury. That structure gave prosecutors a stronger way to gather testimony and examine PG&E’s records, equipment history, and internal practices. In complex utility negligence cases, joint investigative efforts and grand jury tools can be especially valuable when the relevant evidence is technical, internal, or difficult to obtain quickly.
Causation in the Camp Fire case did not rest on one type of evidence alone. Fire origin findings, electrical equipment analysis, and forensic identification work all contributed to the broader evidentiary record. The case shows why attorneys handling utility-fire litigation and other infrastructure disasters often need a multidisciplinary technical strategy early in the matter rather than relying on a single expert lane.
Prosecutors did not frame the Camp Fire as an isolated event. PG&E’s broader safety history, including prior regulatory and operational failures, provided additional context for the negligence allegations. In similar litigation, evidence of earlier violations, enforcement actions, or repeated safety problems can help support the argument that the underlying failure was part of a larger pattern rather than a one-time breakdown.
The Camp Fire was more than a devastating wildfire. It became a major legal reckoning over what can happen when utility infrastructure is not properly maintained in high-risk conditions. With 85 people killed, entire communities destroyed, and PG&E ultimately facing prosecution, the case showed how failures in inspection, maintenance, and risk prevention can produce both catastrophic human loss and significant legal exposure.
The case also showed the central role of technical and forensic analysis in large-scale disaster litigation. Investigators and forensic contributors helped trace the fire to failed transmission equipment, explain how the ignition occurred, and support the difficult process of victim identification. Their work gave the court a clearer record of both causation and consequence. For attorneys handling wildfire, utility, and other mass-disaster matters, the Camp Fire remains a powerful example of how technical evidence can shape liability and accountability.
What caused the 2018 Camp Fire in California?
Investigators found that the Camp Fire began when a broken suspension hook failed on PG&E’s transmission equipment. That failure allowed a live high-voltage line to detach, arc, and ignite the dry vegetation below. In practical terms, the wildfire began with a utility equipment failure.
How many people died in the Camp Fire?
The Camp Fire killed 85 people, making it the deadliest wildfire in California history. Many victims were caught in homes, vehicles, and evacuation routes as the fire moved rapidly through Paradise and nearby communities.
Was PG&E found liable for the Camp Fire?
Yes. In 2020, PG&E pleaded guilty to 85 felony counts, including 84 counts of involuntary manslaughter. The plea amounted to an admission that the company’s failure to properly maintain its transmission equipment played a direct role in causing the fire.
What kinds of expert analysis were important in the Camp Fire case?
The case involved several forms of technical and forensic analysis. These included fire origin investigation, electrical engineering analysis, and forensic identification work such as DNA testing and odontology. Together, those efforts helped explain how the fire started and how many victims were identified.
What legal strategies were used against PG&E?
Prosecutors used a special investigative grand jury, coordinated closely with fire investigators, and relied on records and witness testimony to examine PG&E’s maintenance practices. They also used the company’s broader safety history to support the argument that the Camp Fire was not an isolated failure.
How were victims identified after the Camp Fire?
Victim identification was especially difficult because of the extreme heat and destruction caused by the fire. Traditional methods were not always sufficient, so forensic teams relied heavily on Rapid DNA testing along with dental and anthropological analysis to identify many of the victims.
Electrical Defects
Electrical Fires
Electric Power Lines
Fire Cause and Origin Investigations
Forest Fire
Utility Accidents
Forensic Inspections
Emergency Evacuations
Natural Disasters
Safety Engineering
Utilities, +4
Utilities
Environmental Engineering, +4
Utilities
Victim identification was especially difficult because of the extreme heat and destruction caused by the fire. Traditional methods were not always sufficient, so forensic teams relied heavily on Rapid DNA testing along with dental and anthropological analysis to identify many of the victims.