criminal offense

In most states, unauthorized practice of law is a criminal offense.

I might add that just following orders to make a special structure is not a criminal offense.

It was already a criminal offense to leak the information.

In some cases, the violation can be a criminal offense.

I'd even make it a criminal offense, not just civil.

"I knew that sexual abuse was a criminal offense," she said.

In some other countries, during the war, listening to foreign stations was a criminal offense.

A central bank spokesman said any evidence of criminal offenses would be turned over to a court.

It was, for instance, a criminal offense in many states.