Penal Code 347 PC Explained
California Penal Code 347 makes it a felony to willfully add poison or a harmful substance to food, drink, medicine, pharmaceutical products, or public water supplies.
The law also criminalizes falsely and maliciously claiming that something has been poisoned.
Under California Penal Code 347, a conviction can result in multiple years in state prison — and even longer sentences if someone suffers serious injury or death.
These charges are prosecuted aggressively in California due to the serious public safety concerns involved.
Your best hope for a favorable outcome is with an experienced criminal defense attorney at the Hedding Law Firm in Los Angeles. To schedule a consultation, call (866) 986-2092 or use the contact form here.
What Does Penal Code 347 Prohibit?
PC 347 outlines two separate criminal offenses:
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Willfully poisoning food, drink, medicine, or water
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Maliciously making a false report that something has been poisoned
Each offense has distinct legal elements.
Willfully Poisoning Food, Drink, Medicine, or Water – PC 347(a)
Under subdivision (a), it is a felony to:
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Add poison or a harmful substance to food, drink, medicine, or pharmaceutical products; or
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Place poison in a spring, well, reservoir, or public water supply
To convict someone under this section, the prosecution must prove:
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You added a poison or harmful substance;
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You knew or reasonably should have known that someone would consume it;
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You acted willfully and intentionally.
The crime is complete even if:
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No one actually consumes the poisoned substance;
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No injury occurs.
Intent and knowledge are key elements.
Maliciously Making a False Poisoning Report – PC 347(b)
Subdivision (b) makes it a crime to falsely claim that food, drink, medicine, or a water supply has been or will be poisoned.
To convict someone under this section, the prosecutor must prove:
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You informed someone that poisoning had occurred or would occur;
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You knew the statement was false;
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You acted maliciously, meaning with wrongful intent to annoy, harm, or cause fear.
A good-faith warning based on a mistaken belief does not satisfy the malicious element.
Examples of Penal Code 347 Violations
Examples that may lead to charges include:
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Pouring a toxic substance into a neighbor's well water
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Mixing bleach into food to cause harm
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Placing harmful chemicals in public drinking water
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Falsely claiming that restaurant food was poisoned to cause panic
However, someone who genuinely believes a threat exists and warns others without malicious intent may not be criminally liable.
What Are the Penalties for Penal Code 347?
Penalties depend on the facts of the case.
General Poisoning Offense
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Two, four, or five years in state prison
If Death or Great Bodily Injury Occurs
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Additional three-year sentence enhancement
False Poisoning Report
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Up to one year in county jail; or
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State prison, depending on the circumstances
Courts may also impose:
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Substantial fines
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Probation conditions
Because this is a felony offense, collateral consequences may include:
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Loss of firearm rights
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Professional license consequences
What Must the Prosecutor Prove?
To obtain a conviction, prosecutors must establish:
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The presence of a poison or harmful substance;
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Knowledge that someone would consume it;
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Intentional conduct;
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Malicious intent (for false reports).
Without proof of intent or knowledge, the case may fail.
Common Defenses to PC 347 Charges
An experienced criminal defense attorney may raise several defenses.
Lack of Intent
If the act was accidental or negligent rather than willful, criminal liability may not apply.
Lack of Knowledge
You did not know someone would consume the substance.
No Poison or Harmful Substance
The substance may not legally qualify as “poison” under the statute.
No Malicious Intent
In false-report cases, you did not act with wrongful intent.
False Accusations or Insufficient Evidence
The prosecution may lack credible evidence proving all elements beyond a reasonable doubt.
Early investigation and forensic review are often critical in these cases.
Frequently Asked Questions
Is Penal Code 347 a felony?
Yes. Poisoning food or water is charged as a felony.
Can I be charged even if no one was hurt?
Yes. Injury is not required for conviction under subdivision (a).
What qualifies as a “harmful substance”?
A harmful substance includes chemicals or materials capable of causing injury if ingested.
What if I believed the poisoning threat was real?
If you did not act maliciously and genuinely believed the threat existed, you may have a defense.
Can these charges be reduced?
Depending on the evidence, charges may be reduced or dismissed through negotiation or motion practice.
Los Angeles Penal Code 347 Defense Attorneys
Poisoning and false poisoning allegations are serious felony charges that require immediate legal representation.
Hedding Law Firm represents clients throughout Los Angeles and Southern California in complex felony cases.
Our attorneys:
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Examine forensic evidence
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Challenge intent and knowledge elements
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Cross-examine expert witnesses
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File motions to suppress improper evidence
If you are facing charges under Penal Code 347, contact our office for a confidential consultation.
Early legal intervention can significantly affect the outcome of your case.
