Home deliveries of knives bought online to be banned in UK

[stanc]

You need to read the history of the bill of rights of 1689 to understand why it was worded that way, I will give you a hint; "William III and Mary II would not have been invited to become joint sovereigns of England if they had not agreed to the bill. The Bill of Rights lays down limits on the powers of the monarch", and also remember what "Sir William Blackstone wrote in the 18th century that the right to have arms was auxiliary to the "natural right of resistance and self-preservation" subject to suitability and allowance by law".
I am sorry you do not understand English law but it has been around a lot longer than American law and they did use "proper English" back then and it was not changed until 1903, You can read about that below, And as the first paragraph states even "in 1900 they wanted a rifle in every cottage";

In 1900 the British government trusted the people with firearms and to be their own guardians. Prime Minister Robert Gascoyne-Cecil, the Marquess of Salisbury said he would "laud the day when there was a rifle in every cottage in England". However in 1903 Britain passed its first ever "gun control" law, a minor one requiring a permit to carry a handgun and restricting the age of purchasers. It was the first toe over a slippery slope towards complete firearms prohibition.

In 1919 the British government, in fear of communist insurgents and domestic and foreign anarchists, passed its first sweeping anti-gun laws (under the smokescreen of crime control) even though gun related crime was almost non existent in the England of the day. British subjects could now only buy a firearm if they could show "a good reason" for having one and the firearm certificate system that we have today (implemented and abused by police) was introduced. The 1920 gun control act was the beginning of the end for private firearms ownership in England. So much for Robert Gascoyne-Cecil's remarks of "a rifle in every cottage in England" being a laudable goal.

So, what you're saying is that, no, you cannot link to any authoritative source(s) which confirm that actually is what "within the law" means in English law.