An anonymous reader writes:
A Los Angeles Superior Court judge has ruled that the Los Angeles Police Department is not required to hand over a week's worth of license plate reader data to the American Civil Liberties Union (ACLU) and the Electronic Frontier Foundation (EFF). He cited the potential of compromising criminal investigations and giving (un-charged) criminals the ability to determine whether or not they were being targeted by law enforcement (PDF). The ACLU and the EFF sought the data under the California Public Records Act, but the judge invoked Section 6254(f), "which protects investigatory files." ACLU attorney Peter Bibring notes, "New surveillance techniques may function better if people don't know about them, but that kind of secrecy is inconsistent with democratic policing."