Do the people who produce the defenders defender (tratters tratter) provide active live assistance 24/7 to the police to tell them where the tracker is, if yer tracker fitted tratter gets nicked, and yer get a crime ref oft the police first?
EDIT: no they don't. But they do offer a load of other good to have things like vibration alert and an option of remote switching the engine oft, dependent on what device yer buy. Currently 3 different product options available.
Skytag offer this, but they don't offer vibration alert. They do have geo zones (movement zones) to detect if the skytag has left the zone, and therefore triggers an alert.