The 45-litre size, and who needs it
At 23.0 x 11.5 x 12.0 inches outside (22.0 x 10.5 x 11.0 inside) with three RF-blocking layers, this is a full kit bag rather than a pouch: laptops, multiple phones and tablets, radios, recovered trackers, or a complete device seizure from one location.
Teams buy the duffel when they have run out of pouches mid-job. Everything inside is isolated from cellular, GPS, Wi-Fi and Bluetooth for as long as it stays sealed.
45L Faraday Duffel Bag ā MAS Series ā 3 RF Layers
23.0 x 11.5 x 12.0ā³ (Oustide), 22.0 x 10.5 x 11.0ā³ (Inside)
How to use it so it works
Shielding only works when the bag is closed correctly. Roll the closure the full number of turns the maker specifies and seal it; a single fold leaves a gap at the seam and the phone reconnects. Test it the first time: put the phone inside, seal it, call it from another line and confirm it does not ring, then check for missed-call notifications when you open it.
Two practical notes. A sealed phone burns battery hunting for signal, so charge before a long isolation. And shielding fabric wears at the fold line ā inspect it periodically and re-test rather than assuming a bag bought two years ago still performs.
Where we use them
Seizing a device for examination, transporting evidence, protecting a principalās phone during a sensitive meeting, and keeping key fobs out of range of relay theft. In forensic work the point is not privacy, it is integrity: an isolated phone cannot receive a remote wipe, and that is the difference between evidence and a story about evidence.
If the device in the bag matters to a case, hand it to an examiner sealed and untouched ā our examiners image devices with the chain of custody documented from the moment they arrive.
