DWI and DUI I thought were two difference things..
Actually the difference between DWI and DUI is also different between different states, and different between the state and the federal goverment. For some states (examples, Virginia and New Jersey) there is no difference between the two terms - they both mean drunk driving. In Minnesota on the other hand, there is technically no such thing as DUI (they use the term DWI - driving while impaired - instead). The distinction for the federal government is drawn based on severity. A DWI is issued when the blood alcohol content (BAC) is over the 0.08 limit, whereas a DUI is a less severe term, given when a persons BAC is under 0.08.
Driving while intoxicated (DWI) and driving under the influence (DUI). DWIs are issued to those who are driving with above the legal limit of alcohol in their system. DUIs are issued when a driver is driving while on drugs that impair their ability to operate the vehicle safely. The drugs can be illegal narcotics, over the counter medication, or prescribed medication (the drugs don't have to be illegal for a DUI to be issued). This applies to jurisdictions where there is a difference stated between the 2 of course.
The specific criminal offense may be called, depending on the jurisdiction, driving under intense influence ('DUII), driving while intoxicated (DWI), operating while intoxicated (OWI), operating a motor vehicle while intoxicated (OMVI), driving under the influence [of alcohol or other drugs] (DUI), driving under the combined influence of alcohol and/or other drugs, driving under the influence per se or drunk in charge [of a vehicle]. Other less common acronyms include ("OVI"), "operating a vehicle (while) impaired," and ("DWAI"), "Driving While Ability Impaired."[3] Many of such laws apply also to boating, piloting aircraft, riding a horse or conducting a horse-drawn vehicle, or cycling.