This page aims to list resources about surveillance devices that have been published by other people than us, and that are particularly relevant to our context.
- Aide technique à la surveillance et filature – le balisage (Technical assistance for surveillance and shadowing – putting beacons), internal document of the french intelligence services dated from the middle of the 2000s, is a manual explaining how to put and operate localization beacons on vehicles in order to surveil movements.
- Maßnahmen gegen Observation (Counter-surveillance techniques) is a booklet published in german in june 2011. It describes some surveillance techniques used by the States to surveil individuals and groups (especially in the context of Germany), and ways to oppose this surveillance.