If you are going HUNTING!
Period, you cannot carry a knife in your possession without a good reason. End of.
The cuffs would be straight on my friend.
Saturday night, you come out the pub, your wearing the same bottoms you had on when out hunting, the knife still in there. Your walking home at midnight, police turn up, explain to you that there have been car breaks in the area, so the grounds are set for a legal stop and search,officer find's the knife in your pocket!
"ok sir i've been hunting earlier" The copper will laugh and nick you for (A) offensive weapon ( having a sharp point