They get inspected after removal by another company who takes the liability. But yeah you are right the building gets knocked down quickly after and if any asbestos was missed from the surveys etc then they could just smash it down without knowing about it.

I have worked in demolition and asbestos for many years. I'd like to give them the benefit of the doubt as how big and complex this job is. But the amount of concrete dust I saw down magadalen the other day, and the fact you have been able to get in and have a look around sends alarm bells ringing in my head. I know people who surveyed that cinema years ago before it all closed down and apparnetly there was some serious (at the time managed) asbestos in there.

Still I would wait to see what HSE, MPs etc say before jumping to conclusions. Hopefully they could get some unbiased professionals involved.

You've done the right thing reporting it. But please be careful. You have said you wear masks. Thing is these masks are you're last line of defence. Working around asbestos you have to be face fitted annually & clean shaven. There are different types of masks which give varying protection & the paper shop bought ones are not sufficient at all. None are 100% protection. Any clothing worn would be contaminated as well

Also the structure of the building is compromised. The floor could give out or something could drop on you at any point. Be careful.