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California PC 484 & PC 487: The “Mistake of Fact” Defense in High-Value Theft Cases

Posted by Dmitry Gorin | Mar 20, 2026

When large sums of money, business assets, or ownership rights are involved, the line between a civil dispute and a criminal accusation can blur quickly.

In California, disagreements over financial transactions—especially in corporate, real estate, or partnership settings—are often escalated into allegations of grand theft under Penal Code 487. But not every disputed transaction is a crime.

The “Mistake of Fact” Defense in High-Value Theft Cases

Many high-value theft cases arise from misunderstandings, informal agreements, or complex financial arrangements where one party genuinely believed they had a legal right to the property.

In these situations, the “mistake of fact” defense becomes one of the most powerful tools available—because it directly challenges the prosecution's ability to prove criminal intent.

For executives, business owners, and professionals, the stakes are extraordinarily high. Even an investigation—before charges are filed—can damage your reputation, disrupt your career, and expose you to significant legal risk. That's why early, strategic legal intervention is critical.

A properly executed defense can often stop a case before it becomes public, reframe the dispute as a civil matter, and protect your freedom and professional standing.

When your reputation, career, and freedom are on the line, you need aggressive legal intervention to keep the dispute out of criminal court. Protect your legacy and intercept the investigation now. Request a private case evaluation with our defense team by calling 818-781-1570 or visiting our contact page.


Understanding Larceny Under PC 484 and PC 487

In general, California law consolidates most forms of stealing under the term “theft.” The specific charges and potential consequences depend primarily on the type of property allegedly stolen and its value.

Under California Penal Code 484, petty theft applies when the value of the property is $950 or less. But for anything of significant value, such as corporate bank accounts or business inventory, theft allegations almost exclusively fall under California Penal Code 487, which defines Grand Theft. Grand theft applies when the value of the stolen money, labor, or real or personal property exceeds $950.

To secure a conviction for grand theft, prosecutors must prove all three of these elements beyond a reasonable doubt:

  1. You took possession of property owned by someone else,
  2. The property's value exceeded $950, and
  3. When you took the property, you intended to deprive the owner of it permanently.

The most critical element in high-stakes grand theft defense is the second one: intent. Theft is a "specific intent" crime. To be convicted, the prosecution must prove your internal state of mind when the property changed hands.

If you genuinely believed the property belonged to you, then you did not have the intent to deprive “the owner” of it. This is because you believed you were the owner.


How Does California Law Define the "Mistake of Fact" Defense?

The "Mistake of Fact" defense directly attacks the prosecution's ability to prove specific intent. If you took property because you honestly believed you had a right to it, you lacked the intent to steal.

California Criminal Jury Instructions (CALCRIM) 3406 outlines the mistake-of-fact defense.

It states that a defendant is not guilty of a specific intent crime if they did not have the required intent or mental state because they either (1) reasonably did not know a fact or (2) reasonably and mistakenly believed a fact.

Essentially, if you take possession of property that you genuinely and reasonably believe belongs to you, then the mistake of fact defense can be used if it turns out you were wrong.

This is because you reasonably believed the property was yours and thus did not have the necessary intent to “steal” it.


Case Examples: How the “Mistake of Fact” Defense Applies in Real Life

High-value theft cases often arise from complex financial relationships, not clear criminal intent. Below are realistic scenarios that illustrate how a mistake of fact can transform what appears to be grand theft into a defensible civil dispute.


Executive Bonus Dispute Misinterpreted as Theft

A senior executive transfers a six-figure bonus from a company account based on their interpretation of a compensation agreement. The board later claims the payment was unauthorized and reports the transaction as grand theft.

Defense Analysis:

  • employment contract contains ambiguous bonus language

  • prior bonuses were issued informally

  • funds were transferred openly, not concealed

Outcome Insight:
The executive reasonably believed the compensation was earned, undermining criminal intent.


Business Partner Withdrawal from Joint Account

Two business partners share access to a company account. One partner withdraws a large sum, believing they are entitled to reimbursement for prior investments.

The other partner claims the withdrawal was theft.

Defense Analysis:

  • history of shared financial control

  • undocumented but consistent reimbursement practices

  • no effort to hide the transaction

Outcome Insight:
The withdrawal reflects a financial dispute—not an intent to steal.


Real Estate Escrow Release Dispute

A real estate investor authorizes the release of escrow funds after receiving verbal confirmation that conditions are satisfied. The seller later disputes the timing and files a police report.

Defense Analysis:

  • communications suggesting approval

  • standard industry practices followed

  • no deceptive conduct

Outcome Insight:
A misunderstanding of timing—not criminal intent—supports a mistake-of-fact defense.


Startup Founder Equity Distribution Conflict

A startup founder transfers shares and related funds based on what they believe is a finalized agreement with investors. The investors claim the agreement was not fully executed.

Defense Analysis:

  • draft agreements circulated by counsel

  • written communications confirming deal terms

  • actions consistent with standard startup practices

Outcome Insight:
The founder acted under a reasonable belief that the deal was complete.


Financial Advisor Following Client Instructions

A financial advisor transfers funds between accounts based on their belief that the instructions are valid client instructions. The client later disputes authorization and alleges theft.

Defense Analysis:

  • documented communication from the client

  • standard procedures followed

  • no personal benefit gained by advisor

Outcome Insight:
Reliance on client direction supports a lack of criminal intent.


Corporate Expense Reimbursement Dispute

An employee submits and processes reimbursement for business-related expenses they believe are covered under company policy. The employer later claims the expenses were unauthorized.

Defense Analysis:

  • prior reimbursements approved under similar circumstances

  • unclear or inconsistently enforced policies

  • no attempt to conceal the transaction

Outcome Insight:
A policy dispute—not fraud—negates intent.


Key Takeaway

These examples demonstrate a critical principle:

Grand theft cases are often built on how a transaction is interpreted—not just what happened.

If you acted based on a reasonable belief that you had a right to the property, then:

  • you may lack the required criminal intent

  • the case may be reduced or dismissed

  • the matter may properly belong in civil court—not criminal court

A strong legal defense focuses on reconstructing the facts, context, and intent behind the transaction to protect your freedom and reputation.


Frequently Asked Questions (FAQs)

What is the difference between Penal Code 484 and Penal Code 487?

  • Penal Code 484 covers general theft (typically petty theft under $950)

  • Penal Code 487 applies to grand theft, where the value exceeds $950

Grand theft carries significantly more serious penalties and may be charged as a felony.


What is the “mistake of fact” defense?

The mistake of fact defense applies when you honestly and reasonably believed you had a legal right to the property.

If this belief is proven, it means:

  • you did not intend to steal

  • you lacked the required criminal intent

  • you cannot be convicted of theft


Does my belief have to be correct?

No. Your belief does not need to be correct—only reasonable and in good faith.

Even if you were mistaken, the law recognizes that a genuine misunderstanding can eliminate criminal intent.


Is intent really that important in theft cases?

Yes. Theft is a specific intent crime, meaning prosecutors must prove you intended to permanently deprive the owner of property.

If intent cannot be proven, the case fails.


Can a business dispute turn into criminal charges?

Yes. Many theft cases begin as:

  • partnership disputes

  • contract disagreements

  • financial misunderstandings

In high-value cases, one party may report the issue to law enforcement to gain leverage.


What kinds of situations commonly lead to these charges?

Common scenarios include:

  • transferring funds between business and personal accounts

  • disputes over ownership or compensation

  • informal agreements or handshake deals

  • escrow or real estate conflicts

These situations are often civil in nature—but may be mischaracterized as criminal.


Can charges be avoided before they are filed?

Yes. Through pre-file intervention, a defense attorney can:

  • present evidence to investigators

  • demonstrate lack of criminal intent

  • show the issue is a civil dispute

This can result in no charges being filed at all.


What evidence helps prove a mistake of fact?

Strong evidence may include:

  • emails or text messages showing authorization

  • contracts or draft agreements

  • financial records and account history

  • expert analysis (forensic accounting)

  • proof of reliance on legal or financial advisors


What happens if I am arrested or under investigation?

  • do not speak to law enforcement

  • do not attempt to explain the situation

  • do not provide documents without legal advice

Contact a defense attorney immediately.


Can I still be charged if no money was actually lost?

Yes. Prosecutors can file charges based on intent and attempted conduct, even if no financial loss occurred.


Will a theft charge affect my career?

Yes. Theft allegations—especially at high values—can impact:

  • professional reputation

  • business relationships

  • licensing and employment

  • future financial opportunities

This is why early intervention is critical.


Can a grand theft charge be reduced?

Yes. Depending on the case, charges may be:

  • reduced to a misdemeanor

  • resolved as a civil dispute

  • dismissed entirely

A strong defense strategy is key.


Key Takeaway

High-value theft cases often hinge on intent and understanding—not just the transaction itself.

If you acted based on a reasonable belief that you had a right to the property, the mistake of fact defense can be a powerful tool to defeat criminal charges and protect your future.


Related Crimes to Penal Code 484 & 487 (Theft and Grand Theft)

In high-value financial investigations, prosecutors rarely rely on a single charge. Instead, they often file multiple overlapping offenses to increase pressure and strengthen their case. Understanding these related crimes is essential when building a comprehensive defense strategy.


Penal Code 503 – Embezzlement

Embezzlement occurs when someone entrusted with property or funds fraudulently uses it for their own benefit.

Common scenarios include:

  • executives transferring company funds

  • employees using business accounts for personal expenses

  • financial managers reallocating funds without authorization

Key distinction:
Embezzlement focuses on the misuse of entrusted property, rather than taking property outright.


Penal Code 532 – Theft by False Pretenses

A PC 532 charge applies when someone obtains money or property through intentional misrepresentation.

Examples include:

  • making false statements to secure payment

  • misrepresenting ownership or authority

  • inducing someone to transfer assets based on misleading information

Key issue:
Prosecutors must prove intentional deception, which can overlap with mistake-of-fact defenses.


Penal Code 470 – Forgery

Forgery involves creating, altering, or using false documents to obtain money or property.

Examples include:

  • falsifying contracts or agreements

  • altering financial records

  • signing another person's name without authorization

Forgery charges are often added when documentation is disputed in financial transactions. Corporate record forgery occurs when an individual uses their position or access to create deceptive documentation that others will rely on as genuine.


Penal Code 487(d)(1) – Grand Theft of Property

This subsection applies specifically to theft of high-value property such as:

  • vehicles

  • equipment

  • business assets

It is frequently charged in cases involving tangible assets rather than cash.


Penal Code 496 – Receiving Stolen Property

A PC 496 offense applies when someone knowingly receives, possesses, or benefits from stolen property.

Examples include:

  • accepting funds from a disputed transaction

  • holding assets tied to alleged theft

  • benefiting from the proceeds of a financial dispute

A person can be charged even if they did not commit the original theft.


Penal Code 182 – Criminal Conspiracy

Conspiracy charges apply when two or more people agree to commit a crime and take steps toward carrying it out.

Examples include:

  • coordinated financial transactions

  • joint business actions interpreted as fraudulent

  • multiple parties are involved in disputed asset transfers

Each participant can be charged—even with minimal involvement.


Penal Code 186.11 – Aggravated White Collar Crime Enhancement

This enhancement applies in large-scale financial cases involving:

  • multiple victims

  • significant monetary loss

  • complex financial schemes

Potential consequences include:

  • additional prison time

  • asset freezes

  • increased fines and restitution


Penal Code 12022.6 – Excessive Loss Enhancement

This enhancement applies when the alleged financial loss exceeds certain thresholds.

Examples:

  • losses exceeding $65,000

  • larger enhancements for losses in the hundreds of thousands or millions

This can significantly increase sentencing exposure.


Federal Charges (When Applicable)

In high-value or multi-state cases, federal charges may also apply, such as:

These carry severe penalties and are often prosecuted aggressively.


Why Related Charges Matter

Prosecutors often stack charges to:

  • increase potential penalties

  • create leverage in plea negotiations

  • present multiple theories of liability

Even if one charge is weak, others may still proceed.


How Do Well-Intentioned People Often End up Facing Larceny Charges?

Business owners and corporate executives manage very complex portfolios. They rely on financial advisors and their businesses' corporate structure to guide them. Because of the complexity and multiple parties involved, this area is fertile ground for misunderstandings that prosecutors may frame as criminal acts.

Common triggers for high-profile theft investigations include:

  • Commingled Funds. Business owners often transfer money between personal and corporate accounts to cover immediate expenses. Without meticulous bookkeeping, these transfers can appear to be embezzlement.
  • Informal Partnership Agreements. In the entertainment and tech industries, million-dollar deals sometimes begin with verbal agreements or text messages. If the relationship sours, one party may accuse the other of stealing intellectual property or of failing to make advance payments.
  • Complex Compensation Structures. Executives receiving stock options or performance bonuses may exercise options or transfer funds based on a disputed reading of their employment contract.
  • Real Estate Escrow Disputes. Escrow can be a painful process for all involved. Oftentimes, disputes over when to release escrow funds quickly escalate into accusations of fraud or grand theft.

In all of these scenarios, the issue ought to be resolved in the civil courts, not the criminal courts. However, a hostile business partner may file a police report to gain leverage or to “get even.”


Protecting Legacies with Pre-File Intervention

An acquittal at trial is not always a victory. Merely being arrested and having your booking photo released to the world can irreparably tarnish your reputation and ruin a long-built personal legacy.

Our primary objective in high-profile larceny cases is to keep the matter out of court entirely. We utilize a strategy known as pre-file intervention.

Prosecutors have “prosecutorial discretion,” which allows them to decide which cases to prosecute. When we are retained while your case is still being investigated, our defense team interacts directly with detectives and prosecutors to present exculpatory evidence. 

By demonstrating to the authorities that the issue is primarily a genuine civil dispute rather than a criminal act, we often persuade the prosecutor to drop the case entirely.

If the prosecutor declines to file charges, then there is no public indictment and no media spectacle. The parties are then free to resolve their financial disagreements through private civil litigation or arbitration.


How We Demonstrate a Lack of Specific Intent

Asserting a mistake of fact requires more than simply saying, "I thought the money was mine." We must build a compelling, evidence-based narrative that proves your good-faith belief. We use a combination of documentary evidence and expert analysis to reconstruct the transaction.

To establish a mistake of fact, our legal team gathers specific categories of evidence:

  • Historical Course of Conduct. If you and your business partners have a five-year history of informally transferring funds between specific accounts without issue, we use that history to show your actions were consistent with past approved behavior.
  • Forensic Accounting. We retain independent forensic accountants to trace the flow of funds. If the money was moved into an open, declared account rather than hidden in a shell company, it supports the absence of criminal intent.
  • Reliance on Counsel. If you executed a transaction based on the advice of a CPA, financial advisor, or corporate attorney, their testimony can firmly establish that your actions were based on a professional misunderstanding of the facts, not a desire to steal.

Case Study: How Mistake of Fact Defenses Play Out in the Real World

To understand how the mistake-of-fact defense operates in practice, consider this scenario involving a white-collar crime allegation.

A founding CEO of a successful technology startup was forced out by a venture capital firm holding a majority stake. During the messy exit negotiations, the VC firm's legal team drafted a separation agreement that included a $1 million severance payment.

The CEO and the VC firm then agreed on rough terms over text messages. The CEO then faxed the paperwork to the VC's executives for their signatures so the deal could be finalized.

Genuinely believing the deal was finalized, the CEO instructed the company's payroll department to authorize the $1 million transfer to his personal account. However, the VC firm had not yet signed the final paperwork.

Upon discovering the transfer, the VC firm immediately froze the CEO's remaining company shares and contacted the Los Angeles Police Department, accusing him of grand theft and embezzlement.

A CEO in this position faces the possibility of years in prison and the total collapse of his reputation in the tech industry.

However, the Eisner Gorin Team can end the investigation before the police can execute an arrest warrant. Our team often meets with investigating detectives and prosecutors to present exculpatory evidence. In this case, our team could present:

  1. Metadata showing the VC firm's lawyers had emailed the final draft of the severance agreement to the CEO just hours before the transfer.
  2. A text message from the VC firm's managing partner to the CEO stating, "We are good to go on the exit numbers, will sign tomorrow."
  3. Bank records prove the CEO moved the money into his primary, declared savings account, as opposed to one kept under a pseudonym or overseas.

In this situation, we can make a clear case that the CEO acted in good faith and under a genuine mistake of fact. He reasonably believed the text messages constituted final authorization for the transfer.

There was no specific intent to permanently deprive the company of funds unlawfully; there was only a misunderstanding about the administrative timing of the contract execution.


Speak With an Experienced California Criminal Defense Attorney Today

Allegations of grand theft or financial misconduct can escalate quickly—often before you even realize you are under investigation. By the time law enforcement contacts you, prosecutors may already be reviewing evidence and preparing to file charges.

What you do next is critical.

High-value theft cases are not just about money—they are about your reputation, career, and long-term future. A single allegation can trigger:

  • criminal charges and potential prison exposure

  • professional and licensing consequences

  • financial scrutiny and asset freezes

  • irreversible damage to your public reputation

You cannot afford to take a wait-and-see approach.


Why Early Legal Intervention Matters

The strongest defense often begins before charges are filed.

An experienced California criminal defense attorney can:

  • intervene during the investigation stage

  • communicate directly with detectives and prosecutors

  • present evidence showing lack of criminal intent

  • reframe the issue as a civil dispute—not a criminal act

  • prevent charges from being filed whenever possible

In many cases, early action can mean no arrest, no court filing, and no public exposure.


Strategic Defense for High-Stakes Cases

At Eisner Gorin LLP, we understand that high-value theft allegations require more than a standard defense. These cases demand:

  • detailed financial analysis and forensic accounting

  • careful reconstruction of transactions and intent

  • aggressive pre-file intervention strategies

  • discreet handling to protect your reputation

We build evidence-driven defenses designed to show good-faith belief—not criminal intent.


Protect Your Future Before Charges Are Filed

If you are under investigation or facing allegations involving:

  • grand theft (PC 487)

  • embezzlement

  • financial or corporate fraud

you need immediate legal guidance.

Do not speak to law enforcement.
Do not attempt to explain the situation.
Do not provide documents without legal counsel.


Take Action Now

📞 Call (818) 781-1570 for a confidential case evaluation or use the contact form here.

At Eisner Gorin LLP, we act quickly, strategically, and discreetly to protect what matters most—your freedom, your reputation, and your legacy.

About the Author

Dmitry Gorin

Dmitry Gorin is a State-Bar Certified Criminal Law Specialist, who has been involved in criminal trial work and pretrial litigation since 1994. Before becoming partner in Eisner Gorin LLP, Mr. Gorin was a Senior Deputy District Attorney in Los Angeles Courts for more than ten years. As a criminal tri...

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