For those of you who don't live in the UK and don't keep track of UK politics, well done, don't start it's crap.

But it's important to understand how these things always pan out. The government in its current form are in absolute freefall, the next election is going to be at the absolute latest in early Jan 2025 if not earlier (the UK political system being what it is, it's entirely possible it will be earlier). Current polling shows that if they have any seats left it'll be a miracle for them, basically they're going to get wiped out at the next election.

So they've started doing all this bullshit to make life worse for the new government when they come in, like selling off assets to make future infrastructure projects impossible in a fit of spite. They've also started to pass all sorts of ridiculous laws under the guise of raising taxes or protecting children or counterterrorism, but really it's got nothing to do with any of that stuff and everything to do with just getting as much money out of the system as possible, while at the same time making life as difficult as possible for a new government. This law is just in the vein of that.

They know it won't work, they know it's impossible, and they don't care.

They're just hoping there's going to be some terrorist attack after the new government come in and rescind this ridiculous law, and then they can go and point to it and say, "ah this wouldn't have happened if you still had a good law". And then presumably everyone cheers and then they get reelected.
Of course it won't happen, but these guys are delusional.

So honestly I'd advise everyone just ignore it. No one's getting fined because they're not going to bother putting the infrastructure in to actually enforce the law, if they're going to be out in potentially less than 14 months time.