HOLMES BEACH, FL — With the help of new technology and federal grant money, police are preparing to warrantlessly search people’s refreshments as they visit the beaches of Florida. New passive alcohol detectors can simply be hovered above a person’s beverage to detect whether it contains alcohol. Similar devices can detect alcohol on someone’s breath. “We can go up to anybody we want, OK? If we see something that looks like alcohol.” On Holmes Beach, even the mere possession of sealed alcohol containers is illegal. Police are using that as an excuse to inspect anyone’s beverage they choose. “We can...