About 50 police officers from several Delaware County townships joined Pennsylvania State Police troopers to operate a DUI checkpoint one weekend in June. Officers stopped an estimated 2,500 motorists to check for sobriety. The stops were not based on reasonable suspicion of criminal activity. Anyone driving through that intersection was subject to being stopped and questioned. This raises a seemingly obvious question of how this is legal under the Fourth Amendment’s prohibition on unreasonable searches and seizures. The U.S. Supreme Court ruled over 20 years ago that “sobriety checkpoints” like the one in Upper Darby do not violate the Fourth Amendment. It left it to the states to decide whether to restrict police authority in this regard. A few states have chosen to do so, but not Pennsylvania.
Police established the checkpoint at a busy intersection in Upper Darby Township. They began stopping vehicles at 10:00 p.m. on Friday, June 6, 2014 and continued until 2:00 a.m. Sunday morning. They allowed at least 500 vehicles to pass without inspection when lines of cars backed up almost two blocks. Police say they administered field sobriety tests to about 25 people, resulting in DUI charges against 13 people. They issued citations for other traffic violations as well, such as expired inspection or registration, unrestrained children, and license suspensions.
Pennsylvania DUI Lawyers Blog

