I just ran across a UK link to this [urlhttps://www.askthe.police.uk/content/Q589.htm]"Ask the police"[/url] site with an answer to this question:
Are there any legal self defence products that I can buy?
The short answer:
The rest of the response shows me that self defense (US spelling) in the UK is pretty much illegal unless you have Chuck Norris type abilities and a good lawyer.The only fully legal self defence product at the moment is a rape alarm. These are not expensive and can be bought from most local police stations or supermarkets.