In Sect 2,(1) (b) STAO states.....
any spring trap which is equivalent in all relevant respects to a spring trap of a type and
make specified in any entry in Column 1 of the Schedule.
The copies being sold DO NOT comply with this as they are not equivalent.
They may appear to be visually similar however they are not equivalent - particularly in spring force which influences the speed and force of impact. All the copies I have come across had much weaker springs. Another difference is the copies are not brass-on-brass triggers. Also the anchor chains are differnet.etc , etc
The key point is "all relevant respects" . Because they are not equivalent then they are illegal. Cheap maybe, but not cheerful and certainly not legal.
