Several states have programs whereby motorists or other bystanders can report occurances of suspected drunken driving to authorities via cell phone or other forms of communication.
The New Hampshire Supreme Court, however, is giving police a set of guidelines to employ in this process.
The ruling came as a result of a case involving a Massachusetts woman charged with DUI after an unidentified caller had alerted police, who in turn did not observe any erratic behavior, but arrested the woman anyway based on the caller's information. The trial court threw the case out, saying the woman's being stopped violated her rights in that it was not made clear what the tipster had witnessed or how reliable that person was. The state appealled the decision, and New Hampshire's supreme court sent the case back with guidelines.