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December 29, 2020 05:00 pm

Police Turn To Car Data To Destroy Suspects' Alibis

In recent years, investigators have realized that automobiles -- particularly newer models -- can be treasure troves of digital evidence. Their onboard computers generate and store data that can be used to reconstruct where a vehicle has been and what its passengers were doing. From a report: They reveal everything from location, speed and acceleration to when doors were opened and closed, whether texts and calls were made while the cellphone was plugged into the infotainment system, as well as voice commands and web histories. But that boon for forensic investigators creates fear for privacy activists, who warn that the lack of information security baked into vehicles' computers poses a risk to consumers and who call for safeguards to be put in place. "I hear a lot of analogies of cars being smartphones on wheels. But that's vastly reductive," said Andrea Amico, founder of Privacy4Cars, which makes a free app that helps people delete their data from automobiles and makes its money by offering the service to rental companies and dealerships. "If you think about the amount of sensors in a car, the smartphone is a toy. A car has GPS, an accelerometer, a camera. A car will know how much you weigh. Most people don't realize this is happening." Law enforcement agencies have been focusing their investigative efforts on two main information sources: the telematics system -- which is like the "black box" -- and the infotainment system. The telematics system stores a vehicle's turn-by-turn navigation, speed, acceleration and deceleration information, as well as more granular clues, such as when and where the lights were switched on, the doors were opened, seat belts were put on and airbags were deployed. The infotainment system records recent destinations, call logs, contact lists, text messages, emails, pictures, videos, web histories, voice commands and social media feeds. It can also keep track of the phones that have been connected to the vehicle via USB cable or Bluetooth, as well as all the apps installed on the device. Together, the data allows investigators to reconstruct a vehicle's journey and paint a picture of driver and passenger behavior. In a criminal case, the sequence of doors opening and seat belts being inserted could help show that a suspect had an accomplice.

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