Can I be convicted of a crime if I didn’t realize what I did was illegal?

Related Ads

Need Professional Help? Talk to a Lawyer

Enter Your Zip Code to Connect with a Lawyer Serving Your Area

searchbox small

As judges like to say, ignorance of the law is no defense to criminal charges. There are exceptions, but the overwhelming majority of crimes don’t require that the defendant know that his or her conduct is illegal.

As generally applied, this tenet is uncontroversial. It’s hard to fathom a defendant sincerely arguing that she didn’t know that theft or driving under the influence of alcohol was illegal.

People charged with crimes often argue that they were mistaken not as to the law, but as to the facts. Factual mistake is more likely to provide a viable defense than legal mistake. But not all crimes lend themselves to a mistake-of-fact defense. For example, those charged with statutory rape commonly assert that they didn’t know their partner wasn’t old enough to consent. In this situation, the defendant isn’t arguing mistake of law (that he didn’t know having sex with a minor was illegal), but rather, mistake of fact (that he didn’t know how old his sexual partner was). Mistake of fact is often a viable defense to criminal charges, but in most states it’s not when statutory rape is involved.

For more on state of mind in criminal cases, including an example of ignorance of law as a valid defense, see How Defendants' Mental States Affect Their Responsibility for a Crime. Also make sure to check out our articles dedicated to mistake of fact and mistake of law.

Talk to a Defense Lawyer

Charged with a crime? Talk to a lawyer.
how it works 1
Tell us about your case
how it works 2
Get matched with local lawyers
how it works 1
Connect with your lawyers