The law is set up to vitually cover any knife as a dangerous knife if the officer can state why he feels it to be so. NYC is NOT a knife friendly location. NYS is better by far. There is no hunting or trapping in NYC, and how much fishing can you do??? The NYC PD will even flick open a knife by holding the blade and flicking the handle down wards and claiming it is a gravity knife. The courts have held this to be acceptable. ( I don't think it is fair)Retired or former LEOs ( as me) would almost never arrest someone for knife possession. Not true of someone who is on the force now. These newer officers never carried a knife in their teen years (metal detectors in clubs and schools) and they have been trained that all knives are to be considered some sort of weapon. If you are truly fishing, hunting or trapping I would not worry too much, but normal carry becareful.....Just a not the NYC law is the Admin Code not the Penal Law......