can I legally turn around if I see a DUI checkpoint short answer is absolutely you have the right to turn around but you need to know this before you do police officers are going to position two or three police officers in advance of this DUI checkpoint to look for that very thing because it's a pretty good indicator that you're probably going to have alcohol on your breath if you're trying to avoid a DUI checkpoint most people won't avoid a DUI checkpoint unless they've had something to drink so just be careful when you turn around make sure you're following all the traffic rules because they still need probable cause to pull you over they can't pull you over simply because you turned around in a DUI checkpoint you can turn around before a DUI checkpoint just do it safely