https://www.techdirt.com/articles/20190409/12511041964/court-says-virginia-pds-use-automatic-plate-readers-violates-states-data-privacy-law.shtml

The ACLU has secured a win for privacy in Virginia after taking on the state law enforcement and their many, many automatic license plate readers.

The state's ALPR track record isn't great. Law enforcement and other government agencies love the tech, even if they have a considerable amount of trouble showing that plate readers do anything more useful than catch property tax cheats. Law enforcement agencies have turned their plate readers on political rally attendees, raising First Amendment issues along with the usual privacy concerns.