When you are researching statutes so you always need to use the current version? This was not a trick question, but you need to remember that you may need to research the statute that was in place at the time of the matter. For example, if your client committed the crime in 2019, then you need to research the criminal statutes that were enforce at that time. Also, you need to be sure that all the cases you are considering are interpreting the statute that was enforce at the time of the crime. And, of course, it you were researching a matter that was dealing with regulations, you again need to be sure that you are relying on regulations that were enforced at the time of the matter.