A free phone app allows people to potentially see the location of police checkpoints. Some believe this is useful information while others worry it gives false confidence to drink drivers. To promote public safety on city streets, it's not uncommon for the police to set up roadblocks or checkpoints and randomly pull over drivers. Now, there is a free phone app that allows people to check police locations and potentially avoid these roadblocks."I think it only has limited effectiveness. Police roadblocks and checkpoints are not always in specified locations and can move. This is something to think about.""I worry that some people may use this software while drinking and driving to escape police detection."The location of police checkpoints are identified on this map in different colors. A r
