What’s the difference between federal criminal defense and state criminal defense? Lots. And guess what: the feds, as a different “sovereign” than a state can charge you AGAIN for criminal conduct you have already been tried for in state court. The Supreme Court of the United States has held that such double prosecution is NOT a double jeopardy violation.
What types of crimes are prosecuted in federal court? Any crime with an interstate commerce component such as firearms, drugs, mail fraud or theft, federal government benefit fraud, bank robbery, bank fraud, immigration offenses, alien smuggling, smuggling, money laundering, securities fraud, bribery of public officials counterfeiting, computer related crimes, child pornography, extortionate extensions of credit, federal tax crimes, forgery, arson, obstruction of justice, conspiracies and many, many more.
So if you have been charged and convicted in state court of delivery of, say, methamphetamine, you could be recharged and convicted again in federal court with additional penalties.
If you are charged in state court with a crime that has the threat of federal involvement, it is in YOUR best interest to seek the counsel of an attorney who understands both the state and federal processes. Remember, dealing with the state is does not stop the federal government from charging you again, or vice versa