Samurai Swords

Good to see my home country England spending tax payers money effectively.
They recently put into effect a ban on the sale, production, and importation of samurai swords.

"Those breaking the law face six months in jail and a £5,000 fine. Carrying a sword in public is already illegal.
Exemptions will cover swords which are used for re-enactments or antique weapons kept on display by collectors.
Eight years ago a councillor was killed by a man wielding a samurai sword in the office of Cheltenham Liberal Democrat MP Nigel Jones.
Anyone found guilty of importing samurai swords will face up to seven years in prison and an unlimited fine. "

What gets me is that they implemented this because a person was killed by a samurai sword *8* years ago?
Does this mean that if I declare myself a collector or say that my sword is part of my cosplay re-enactments then I'd be off the hook?
News via Japan Probe, image via Moe Imouto.