..Snares need a swivel and two stops to be legal in Jersey
not so, only a deer stop. the snare can't open bigger then a 12" loop. some guys make a shorter snare that when open to 12" the lock hits the swivel, can't open any further.
a local around me makes his snares this way. he says it saves cable. but i don't like the swivel up in the air. but he's a coon snarer mostly, k9's are his insidentals.
you can do the same thing for a mink snare. as long as the snare doesn't open more then 4" it's legal. those ones that are built on the end of twisted wire, also the support and anchor.
in the picture is that end stop a brass nut? that won't hold for a end stop. i use brass 4/40 nuts for deer and loop stops though. it eliminated smashing them too hard and weakening the cable.