e attorneys, said during the hearing.

The Department of Justice argued during the hearing that the cameras captured information visible in public, and that the data is  episodic' and not actively tracking vehicles.

Court gavel. (Photo by MediaNews Group/Boston Herald via Getty Images)

Dig deeper:

In a similar case in Oklahoma, a U.S. district judge ruled that use of Flock data violated a suspect's Fourth Amendment rights.

What they're saying:

 There's a history argument here that has been people made it about a lot of different kinds of electronic surveillance, but it's become very popular with Fock in the last year or so,  says David Coale, a constitutional law attorney not involved in the case.

Coale says the ruling in this case could have an impact on future cases involving Flock cameras.

 What I would expect them to do is, whichever way they rule, to say here are the three or four key factors that led us to put this case on this side of the line or that side of the line. 

David Coale

What's next:

Though there is no deadline for the federal court to issue a ruling, Coale expects to hear a ruling within 90 days of the argument, which was heard on October 5.