Firstly, that is impossible. You cannot tell who is using a computer or mobile from an IP address. At best you can tell subscriber details, if they exist, and maybe a location where the IP is initially routed (but it may then go on to anywhere in the world). So what is being asked is impossible.
But what is also odd is that there are already laws such as DRIPA requiring logging of IP when people connect to be held for a year; and allowing the authorities to get subscriber details under RIPA. If we are to assume they mean "subscriber" then that already exists, so what new laws are being suggested?
As I said on Sky News, this is pointless. Because of blocks on legal porn, everybody now knows how to access a VPN or use a TOR browser. This used to be a bit obscure, and not something most people would know or use, but now it is mainstream stuff. People have legitimate legal reasons to use these tools. If someone wanting to watch legal porn can find a TOR browser you can bet that every terrorist will be able to.
Now, bear in mind, that the EU have already said that the sort of blanket surveillance in DRIPA is not legal, so adding more cannot be legal. We should not have to live in a police state! There is a price for freedom, we all know, and lest we forget that we have had to pay a price for that freedom in the past - so lets not give it away now.
So please, Theresa May, give it a rest.
- It is not legal or moral to blanket snoop on citizens
- It does not show who is actually using an IP
- It is simple for anyone doing anything dodgy to bypass
- It can only impact innocent people and increase costs for everyone