One thing that is common to virtually all stolen Land Rovers is that the column steering lock has been broken. It is normally broken by removing the lock barrel as this is surprisingly quick - the vehicle can then often be started with a screwdriver!
X-Eng's solution is a sleeve for the lock barrel assembly machined out of steel. It is strong enough to prevent the barrel being removed or the end broken off.
The best thing about this solution is it's completely passive - i.e. nothing to lock or unlock. It stays permanently fitted to the vehicle providing 24 hour protection and deterrent value.
Devices similar to this used to be common, but most manufacturers moved to locks which could not be attacked in this way. Good old Land Rover however stuck with technology from the 1970's and are still vulnerable!
From: Paddock Spares