Vehicles, trailers and horseboxes are all potential targets for criminals, especially if they are left unsecured or in isolated locations. If possible park them as close to your premises as possible, preferably out of sight from nearby roads.
Wheelclamps are available to fit all sizes of wheel and should be used to help prevent trailers, horseboxes other vehicles from being taken away. Locking posts can also be installed to provide further security for trailers.
Marking your trailers so they are easily identifiable can deter thieves and help police return them to their rightful owners if they are stolen. There are several trailer-marking schemes, which use either your postcode or a unique number that is entered onto a database. This information can be die-stamped or engraved.
Consider installing an alarm to trailers and horseboxes that is activated when they are moved.