What is a spike? Do all stab vests protect from Spike?
An attack from a spiked implement such as screwdriver, chisel, ice pick, “shiv” or similar improvised weapon could be more likely than a knife. Spikes are easier to obtain, and carry lesser legal consequences (if any) when found as a result of a police search. Where there’s a knife threat there’s almost certainly a spike threat, so Home Office certification from spikes (SP1, SP2 etc) in addition to knives (KR1, KR2 etc) is essential – many stab vests don’t have this.