Your text messages, call histories, browsing history, downloaded emails and photos. In a recent academic paper, South Texas Assistant Professor Adam Gershowitz explains that because many traffic violations are arrestable offenses, just as a cop could search your pockets for drugs, said cop can also search your pockets for a smartphone and go through all its contents.
Your best bet is not to keep these devices in sight if you see the flashing lights in your rear view mirror.
[photo by: KB35]