I think that is a very big BUT there John
There is a simple reason why we have not had a legal spring fox trap in England and Wales for 51 years ....
I think DEFRA have been over hasty in 'approving' this trap without trials in the UK on the target animal in the environment in which it will be used.
Recent spring trap 'approvals' all seem to carry a common thread amongst them ... but it will be their own undoing. Mark my words!
OTC