Faraday bag noun1 •A bag made of a material that blocks electromagnetic signals, and employing special sewing techniques such as dual paired seam construction, used to hold devices such as cell phones in order to prevent outside signals from interfering with the contents of the device.For instance. when a cell phone is found. proper forensic protocol may call for it to be placed in a Faraday bag, which prevents stray signals from going in or out. — 2006 formsFaraday bags
