He also was charged with possessing a firearm with a scratched-out serial number. Brown was arrested without incident Sunday afternoon.
Undercover investigators say they also found other drug paraphernalia.
A former FBI agent has disputed finger print evidence against one of the five men accused in the 1994 Hudson New Hampshire armored car heist. Prosecutors said the prints came from a truck used during the heist. But Rand said photos of the prints show a black rubber door seal on the truck. He, along with manufacturing officials from the Penske truck company, said that truck has only grey rubber door seals. The five men, all from Boston, are on trial in federal court in Concord for a series of bank and armored car robberies, including the one in Hudson in which two guards were killed.