Citation(s) from the GunPolicy.org literature library
UK. 2005 ‘Transporting Firearms.’ Firearms Security: A Brief Guide. London: Home Office. 11 May
When firearms are being transported, the certificate holder must take reasonable precautions to make sure that the firearm, ammunition or shotgun is kept safe.
If you do not transport firearms and ammunition very often, you should not normally need to have a security device fitted in the vehicle.
If your vehicle is left unattended at any time, it is normally safe enough to remove some essential component (where possible) and keep it in your personal possession; for example the bolt from a rifle or the fore-end from a shotgun.
Where practicable, firearms and ammunition should be placed where they cannot be seen, eg inside the load carrying area of a locked vehicle.
If you frequently transport large quantities of firearms by car and they are often left in circumstances where they may be vulnerable to thieves, you need a higher level of security. You could, for example, keep them in a secured metal container in the boot. A car alarm and immobiliser will provide extra security.
If firearms are transported on public transport they should be covered in a suitable slip/case and remain with the holder at all times, except when carried on an aircraft, for example.