Auto "Black Box" Data Protected By Fourth Amendment

Edward Niedermeyer
by Edward Niedermeyer

Via the excellent lawbloggers at The Volokh Conspiracy comes news of a decision by a California appellate court in re: State vs Xinos which finds that the data recorded by a vehicle’s Event Data Recorder or “black box” is protected by the fourth amendment. The ruling covered a case in which police used EDR data to charge the driver in a fatal crash of vehicular manslaughter, and under appeal, the ruling was handed down that

We do not accept the Attorney General’s argument that defendant had no reasonable expectation of privacy in the data contained in his vehicle’s SDM. The precision data recorded by the SDM was generated by his own vehicle for its systems operations. While a person’s driving on public roads is observable, that highly precise, digital data is not being exposed to public view or being conveyed to anyone else. . . . We conclude that a motorist’s subjective and reasonable expectation of privacy with regard to her or his own vehicle encompasses the digital data held in the vehicle’s SDM.

And, according to Volokh

the computer data is in the car, not outside the car, so the legal standard that governs access to the data probable cause but not a warrant

Given trends towards ever more storage of vehicle telemetry data, this is a heartening development for motorists and privacy activists… but don’t be surprised if the issue ends up in the Supreme Court. [Hat Tip: TTAC commenter fincar]

Edward Niedermeyer
Edward Niedermeyer

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  • Rpn453 Rpn453 on Feb 14, 2011

    I don't want to be monitored, but I'd prefer that police investigators have access to as much factual information as possible after some idiot runs into me.

    • GS650G GS650G on Feb 14, 2011

      The problem is limiting activity to investigating events which occurred, not leveraging the technology for nefarious means.

  • Steven02 Steven02 on Feb 14, 2011

    Honestly, this just means that they have to get a warrant or have probable cause to search it. I don't think this is going to be hard to get. This is more of a check box than anything else.

  • ClutchCarGo ClutchCarGo on Feb 14, 2011

    I fully expect that before long we'll be required to waive our 4th Amendment rights in order to get auto insurance, at least in terms of allowing the insurance company to have a look at the data. Also, this ruling is in regards to a criminal trial. Does one have the same protections in a civil trial?

    • Steven02 Steven02 on Feb 14, 2011

      The 4th Amendment is for criminal trials. To get this information in a civil trial, one side has to ask the judge for it. Kind of like when Toyota was giving safety information at the center of the Biller case. Not trying to say how the Biller case went in general, but Toyota was asked to turn over evidence in which they must comply. The same would apply here. You would need to turn it over per the judge's instructions.

  • Golden2husky Golden2husky on Feb 14, 2011

    Don't hold out on the Supreme Court to rule in favor of the individual here. The Scalito-Roberts court isn't going to let a gift to corporate America paid for by average joes go to waste...

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