Key government evidence in the case was gathered via a GPS tracking device that was surreptitiously attached to Jones' vehicle and used by the FBI to track his movements for about a month.

Jones, a nightclub owner, argues that the tracking was illegal because it was initiated and carried out without a court order.

His lawyers maintain that affixing the GPS device on his vehicle violated the Fourth Amendment by conducting search and seizure without a warrant. Jones sought to have evidence gathered from the GPS tracking suppressed.

The government contends that the GPS tracking was akin to observing activity in a public space.

Prosecutors have said the GPS tracker was installed while Jones' car was parked in a public space, and argued that that the device simply allowed them to more efficiently gather information that could also be gathered by physically following Jones' vehicle on public roads.