According to below it's a
to keep a knife in the car, I have always kept my Leatherman multi tool in the car, is the reason for keeping it in the car for a breakdown or emergency use not good enough then
eg. rather have it and not need it.... than need it and not have it... trouble with some our laws is they are ambiguous so our lawyers can shaft us out of our hard earned money.
A public place is anywhere that the public has, or is permitted to
have, access to – even if the public must pay for such access. A
privately owned car or other vehicle is regarded as being a “public
place” while the vehicle is on the public highway.
It is also established that a folding knife having a pointed blade of
less than three inches in length and capable of being secured in an
open position by a locking device is not a folding pocket knife within
the meaning of S.139 of the Criminal Justice Act 1988. As such, if a
folding knife has a locking blade of any length then it will be an
offence for a person to have it in a public place without good reason
or lawful authority. This may apply to many popular branded multitools.