Zombie Knives and filtering

[sigma]

The Zombie Knife ban comes into force today.

https://www.gov.uk/government/news/nationwide-call-to-surrender-all-zombie-style-knives-and-machetes

 

I can still access sites selling these now illegal items through our pupil filter, but the particular issue is that Google Image search relies entirely on Safesearch as my ISP and filtering provider has whitelisted gstatic.com. Google's American sensibilities doesn't have a problem with guns and knives that are classed as illegal in the UK, so there’s a lot to look at here, most of which I would expect to fall into blocked categories.

 

Are any other filtering providers making a better job of it?