Pursuant to State v. Gerschoffer 500 N.E.2d 158 (Ind. 1986),DUI check points are legal in the State of Indiana, however, they must be conducted properly. All check points must be organized by supervisory law enforcement personnel and advertised in advance. This means individual officers cannot take it upon themselves to set up a makeshift checkpoint and force your compliance. Cars must be stopped using a neutral formula, for example, every 4th car to go through will be stopped. Officers cannot randomly select cars or base stops on any type of profiling. Check points must be safe. They must be well lit, provide adequate space to make a turn off for those choosing to not go through, be clearly marked with signs and clearly identifiable police officers and vehicles. Most importantly, the duration of the stop must be reasonable.