CHARLOTTESVILLE, Va. (CBS19 NEWS) -- New license plate readers could be deployed in Charlottesville. Experts say it's a great way to combat crime, but a local attorney says it could impose on our freedoms.

It's called the Flock Safety Program and is in 3,000 communities in the United States.

The license plate readers are set up throughout the city, and if a stolen or flagged vehicle comes into city limits, officers are notified in real time.

It’s the same technology that was used to catch a gunman who killed two reporters in Roanoke in 2015.

The Fairfax Police Department said it works for them. During a two-week trial run in February, they said they used Flock to recover six stolen cars and dangerous drugs like fentanyl and meth. Now, they're using it full-time.

Some people are worried about privacy issues. Constitutional lawyer John Whitehead said technology like this could be a slippery slope where everyone is on the "hot list."

"This is leading to some things that we don't want to see in the United States. And that is what we're watching everything we're doing or control over and whatever. It's going to make people afraid to do certain things. And we shouldn't be afraid in America," Whitehead said.

The Flock program says it deletes all information every 30 days.

CPD is still researching and talking to community members before they make a decision.