Black boxes, or "EDRs" have been fitted into every General Motors car in its 2004 line and is in a number of
Ford models — about 15 percent of all vehicles on the road today, according to road safety experts.
EDRs are certainly not new. Information gathered on black boxes — typically everything from speed, brake pressure, seat belt use and air bag deployment — has already been used in determining guilt in criminal and civil cases across the country.