What Is Criminal Negligence?

Posted by Ronald D. HeddingApr 12, 2025

Criminal negligence is not just a matter of seriousness, but of utmost gravity, to be approached with the highest level of caution. It represents a level of carelessness or recklessness that surpasses mere negligence and is deemed a crime, underscoring the severity of the situation. 

It involves an individual acting in a manner that a reasonable person would recognize as creating a significant and unjustifiable risk of harm, and this risk is disregarded, leading to harm or death. A classic example is causing harm to someone while driving under the influence (DUI). 

In California, criminal negligence is not just a matter of oversight or carelessness, but a serious issue that can put someone's life in danger. Prosecutors, as representatives of the government, are responsible for proving that your actions were not just a mere oversight or carelessness, but a level of negligence that put someone's life at risk, a process that is crucial in the legal proceedings. 

This is what we refer to as criminal negligence, a matter of utmost seriousness in California's legal system. Prosecutors' role in this process is crucial, and their determination is a significant factor in the legal proceedings.

When criminal negligence is a factor in a case, the potential consequences are not just severe, but life-altering. If prosecutors can prove beyond a reasonable doubt that you acted with criminal negligence, you could face serious fines and even jail or prison time, a reality that cannot be ignored.

Failure to Exercise Ordinary Care

This is not a situation to be taken lightly, as the implications can be life-altering and profoundly affect one's personal and professional life. The gravity of these potential consequences cannot be overstated.

Criminal Negligence

In other words, criminal negligence involves a failure to exercise ordinary care, resulting in a high probability of death or great bodily injury, and can lead to criminal charges, such as involuntary manslaughter.

Furthermore, criminal negligence refers to conduct in which you ignore a known or obvious risk or disregard the life and safety of others. Federal and state courts define this behavior as a form of recklessness, where someone acts significantly differently than an ordinary person under similar circumstances.

Often, criminal defense lawyers use several legal strategies to challenge allegations of criminal negligence, including showing that you committed an act as the result of a mistake or accident, did not know that the act created a risk of danger, and that you acted with reasonable care.

These strategies are crucial in defending against charges of criminal negligence. A criminal defense lawyer's role is to ensure that your rights are protected and to provide a strong defense against the allegations.

What Does California Law Say? 

California criminal law uses the theory of criminal negligence. Under this law, a district attorney  must prove all of the following to show it existed:

  • You acted so recklessly that you created a risk of death or injury.
  • The act demonstrated a disregard for or an indifference to human life, and
  • A reasonable person in a similar situation would have known that the act could result in harm.

Further, state law focuses only on your actions and not on the act's consequences. This means that you can act criminally negligent even if no one is hurt, as long as your behavior was such that it was likely would cause someone to get hurt. In addition, even if somebody is hurt or killed, criminal negligence only exists if the act itself that caused the injury was reckless and involved a high degree of danger.

Criminal Negligence - Explained

Criminal negligence occurs when you disregard obvious risks to human life and safety. The district attorney must prove that you acted with criminal negligence to convict you of certain offenses. Under California law, criminal negligence pertains to behavior that demonstrates a reckless disregard for the safety or well-being of others.

Unlike standard negligence, where someone simply fails to exercise reasonable care, criminal negligence involves conduct that is so careless it creates a high risk of great bodily injury or even death and constitutes a gross departure from how an ordinarily prudent person would act in the same situation.

This distinction is crucial for a comprehensive understanding of criminal negligence. To show you acted with criminal negligence, prosecutors must demonstrate the following elements:

  • Recklessness. You acted in a way that created a substantial risk of injury or death to others.
  • Awareness.  You knew, or reasonably should have known, that your actions could result in serious consequences.
  • Gross Deviation. Your behavior significantly departed from what an ordinary person would have reasonably done under the same circumstances.

Examples include a doctor performing a surgery while under the influence of drugs, a company knowingly selling a defective product that causes harm, or a construction company failing to secure a construction site, leading to an accident.

It acts as a substitute for intent. In other words, where criminal negligence applies, prosecutors don't have to prove you intended to commit a crime or cause harm- only that you should have known that your actions were dangerous.

Criminal negligence applies even if no one was hurt or killed. Even if the worst-case scenario didn't play out, the act of criminal negligence still makes the behavior a crime. Criminal negligence requires more than a mistake in judgment, inattention, or simple carelessness. It only applies to outrageous and reckless conduct that clearly departs from how an ordinary person would act in a similar scenario.

Civil vs. Criminal Negligence

Understanding the difference between civil and criminal negligence is crucial. While civil negligence may result in a lawsuit and financial compensation, criminal negligence can lead to criminal charges and serious legal consequences.

Criminal negligence can lead to incarceration. In contrast, civil negligence is a tort in which the wrongdoer may be liable for financial compensation to the victim. This distinction is crucial in understanding the legal consequences of negligence, and it's important for you to be informed about these differences, enhancing your understanding of the legal system.

While negligence can be a factor in both civil and criminal cases, there are significant differences between the two. Understanding these differences can make you feel more informed and knowledgeable about the legal system, empowering you to navigate it more effectively.

  • Civil Negligence addresses harm caused by a failure to exercise reasonable care. It typically arises in personal injury lawsuits where the person alleging negligence seeks monetary compensation, also called damages, for their injuries. Simply put, civil negligence is proven in a civil case involving personal injury. A plaintiff must prove negligence by a "preponderance of the evidence," meaning that it was more likely than not that the defendant acted negligently.
  • Criminal Negligence involves conduct that is not just careless but rises to the level of reckless disregard for human life or safety. The state prosecutes this kind of negligence, which may result not in monetary damages but in criminal penalties, such as jail or prison time, fines, or probation. In a criminal case, a prosecutor must prove that the defendant is guilty "beyond a reasonable doubt."

What are Common Crimes? 

Criminal negligence is not a crime on its own. Instead, it is an essential legal element of certain offenses. In cases where it is a central component of the crime, prosecutors must prove it to secure a conviction. Here are a few examples of crimes that may involve criminal negligence:

  • Child Endangerment (Penal Code 273a PC). A parent, caregiver, or individual may be charged with child endangerment if they willfully place a child in a situation that endangers their physical or mental health. For example, leaving a baby unattended near a swimming pool without a safety barrier could be prosecuted under this statute.
  • Involuntary Manslaughter (Penal Code 192(b) PC). Criminal negligence is a key element in proving involuntary manslaughter since (by definition) the death was unintentional.
  • Vehicular Manslaughter (Penal Code 192(c) PC). Criminal negligence often comes into play in traffic-related cases-for instance, if a driver speeds through a red light while texting and causes a fatal accident.
  • Elder Abuse (Penal Code 368 PC). Failing to provide adequate care to an elderly person under one's responsibility, especially if it leads to serious harm or death, may lead to elder abuse charges that hinge on showing criminal negligence.

Common Defenses to Criminal Negligence

If you've been accused of a crime involving criminal negligence, a good California criminal defense attorney will typically implement legal defenses intended to disprove the criminal negligence element. The specifics will depend on the charges and circumstances, but potential defenses include:

  • Your attorney may argue that your actions do not rise to the level of criminal negligence. Ordinary negligence, carelessness, or poor judgment may have been involved, but did not amount to recklessness or endangerment.
  • Criminal negligence cases often hinge on whether a reasonable person would have been aware of the risk their actions posed. If you were genuinely unaware of the danger and your actions were not extreme, this could weaken the prosecution's case.
  • Not all accidents result from criminal negligence. If the incident occurred despite reasonable precautions or without foreseeable risk, your lawyer may present evidence supporting the claim that it was an unavoidable accident.
  • You will not be found criminally negligent if you use reasonable care to avoid harming a victim. This reasonableness does not constitute reckless behavior. An assertion of reasonable care always acts as a defense.

For more information, contact the Hedding Law Firm, a criminal defense law firm in Los Angeles, CA.

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