Criminal Conduct and Liability: When Conduct Becomes a Crime

Actus reus is the criminal act or omission, and the government must prove the defendant voluntarily engaged in the conduct the statute prohibits. Mens rea refers to the mental state the defendant held at the time of the act, and without it most criminal charges cannot stand. Defendants facing allegations should seek guidance from criminal defense and trials counsel to assess whether the government can establish both elements.

Some criminal offenses impose liability without proof of mental state. In strict liability crimes, the government need only prove that the defendant committed the act. Strict liability offenses are most common in regulatory contexts, including environmental violations, food safety offenses, and certain traffic violations. Anyone charged with a strict liability offense should consult criminal negligence counsel to determine what defenses remain available without an intent requirement.

A defendant acts purposely when the objective is to cause the result the statute prohibits, and knowingly when aware that the result is practically certain. Recklessness involves consciously disregarding a substantial risk that a reasonable person would not have ignored. Criminal negligence is established when the defendant fails to perceive a risk that a reasonable person would have recognized. Defendants facing criminal charges should consult criminal defense counsel to identify which level of mens rea the government must prove and whether the facts support an argument that the defendant's mental state falls short of that standard.

Prosecutors exercise significant discretion in deciding whether criminal conduct warrants formal charges, weighing the strength of the evidence, the severity of the harm, and the public interest in prosecution. Federal prosecutors apply the Principles of Federal Prosecution, which require a reasonable belief that the evidence is sufficient to obtain a conviction. Engaging criminal complaint defense counsel before charges are filed gives defendants the opportunity to present mitigating facts, challenge the government's theory, and potentially avoid indictment.

Under federal law, a corporation can be held criminally liable under the respondeat superior doctrine for the acts of its employees when the employee acted within the scope of employment and with intent to benefit the corporation. Individual executives face criminal liability when they personally participate in criminal conduct, direct employees to commit crimes, or fail to prevent crimes they knew about. Corporate officers and executives who learn their company is under criminal investigation should immediately engage corporate crime counsel to protect their individual rights and assess the company's criminal exposure.

The Department of Justice evaluates corporate criminal liability using factors set out in the Justice Manual, including the pervasiveness of the wrongdoing, the corporation's history of misconduct, whether the corporation has an effective compliance program, and the collateral consequences of prosecution. Corporations that self-report criminal conduct, cooperate with the DOJ, remediate harm, and demonstrate a commitment to compliance are more likely to receive a deferred prosecution agreement than a full indictment. Organizations under DOJ investigation should immediately engage federal criminal defense counsel with experience in corporate investigations and government cooperation strategy.

The most effective criminal defenses challenge the government's ability to prove every element beyond a reasonable doubt. If the government cannot prove actus reus or mens rea, the charge fails. Suppression motions, challenges to witness credibility, and affirmative defenses such as entrapment, duress, and necessity are all available to experienced defense counsel. Defendants under investigation or facing charges should consult criminal defense consultation counsel immediately to preserve their rights.

Federal criminal charges are brought under Title 18 of the U.S. Code and are prosecuted by U.S. Attorneys under the supervision of the Department of Justice. The same criminal conduct can give rise to both federal and state charges without violating the Double Jeopardy Clause, because federal and state governments are separate sovereigns. Federal courts apply the U.S. Sentencing Guidelines, which produce advisory sentencing ranges based on the offense level and the defendant's criminal history. Defendants facing both federal and state charges should engage white collar crime counsel experienced in coordinating defense strategy across multiple jurisdictions and sovereigns.