Guidance summary
Block unauthorised coupling of a detached trailer
This reviewed summary is linked to the question. It does not change the saved answer or score.
Read the reviewed summary
A compatible kingpin lock obstructs unauthorised coupling to an uncoupled trailer. Fit and secure it according to its instructions before leaving the trailer unattended. A drawbar-eye trailer needs the suitable device for that eye; these are security locks, not equipment to leave fitted while towing.
Source: Block unauthorised coupling of a detached trailer
This reviewed summary is available here without another request. The full source opens in a new tab and needs a connection.