Hey! I'm a cop. Teaching evolution is illegal! Your coming with me.
In 1975 the state of Tennessee passed a law making it illegal to teach evolution.
He got arrested for illegally teaching evolution to his class of students.
He went on trial for it.
Actually never mind, overturned
Two famous lawyers took opposing sides in the trial. William Jennings Brian, and strong opponent of evolution led the prosecution. Clarence Darrow, who was speaking for Scopes. Scopes was found guilty.
He was convicted then fined $100.
The Tennessee Supreme Court overturned it in the end.