That's false. First of all, if there's actually a fire it's fine. Second of all, if the speaker was under the actual belief there was a fire even if there wasn'

That's false. First of all, if there's actually a fire it's fine. Second of all, if the speaker was under the actual belief there was a fire even if there wasn't actually a fire, it's fine. Only if the person yelling fire intended to cause panic would there be a case against the person. And proving this would be difficult in a court of law.