Data from popular navigation aid helps police. What about privacy?
In their cocoons of leather upholstery, soothing high-tech sound systems, and automatically activated personal seat settings, drivers have come to regard their car interiors as mobile extensions of the homes that are their private refuges.
The courts have tended to disagree.
Global positioning systems and factory-installed “black box” event data recorders effectively keep late-model vehicles under surveillance 24/7, providing evidence that can place a suspect at a crime scene, undermine an alibi, expose a cheating spouse, or prove liability in an accident.
Although privacy rights advocates warn that the devices augment an already intrusive network of security cameras, speed-monitoring radars, and instantly available databases, police and prosecutors hail the technologies as powerful investigative and forensic tools.
A Commerce, Calif., man suspected of robbery was tracked by police detectives who planted a GPS unit in his car, mapping his movements and using the evidence to convince a jury he was guilty of assault with a deadly weapon.
The evidence is sometimes the product of unwitting self-surveillance. GPS units keep positioning tracks that, if not erased, create a record of a person’s movements.
Event data recorders are standard equipment in most new cars. They record speed, braking, signaling, and other driving behaviors, and can show investigators vital details about what led to a crash.