Just because you practice in civil doesn't excuse you from knowing what lurks in the dark side of the law. Let's face it: isn't everything criminal now? What was regulatory has become criminal; what was local or state has become federal. Two years ago, a law school team added up just the federal crimes on the books: 4,450. In the past decade, Congress has averaged one new crime per week. (That's enactment, not commission.)

So here are five tips from the dark side....