Use of license plate readers in Metro Detroit under scrutiny Automated license plate readers (ALPRs), such as Flock-brand cameras, are being used by police departments across the metro area, including in Detroit. As several law enforcement agencies continue to use the technology, lawmakers in the Michigan House have introduced bipartisan legislation to establish statewide guardrails for how the data is used and shared. It's an initiative backed by the ACLU of Michigan. "It's not just a license plate; it's much more than that," said Kyle Zawacki, legislative director of ACLU of Michigan. House Bill 5492 would regulate the use of ALPRs by private and governmental entities and regulate the use of plate data. Under the bill, governmental entities could obtain or use privately captured plate data only pursuant to a warrant or request, provided the system retained the data for up to 14 days. A similar bill was introduced in the state Senate by GOP Sen. Jim Runestad. Flock says its cameras capture still images of vehicles, including license plates and characteristics such as make, color, and distinguishing features. The company says it does not use facial recognition or identify who is inside. "That is not what these cameras are. Allegedly, they're not collecting video, but they are taking hundreds of images every minute, and those images are collecting beyond just your license plate," said Zawacki. Police say the technology can also help solve crimes. In Fraser, Flock cameras recently helped police locate a driver accused of a fatal hit-and-run involving a motorcyclist. In a statement to CBS News Detroit, the Detroit Police Department says it uses license plate readers "as an investigative tool to assist with solving crime." The department went on to say: "We have seen many cases move forward in their progress and be solved due to