A limited company doesn't go 'bankrupt' - only an individual can. A company can cease trading, go into receivership (if their bank has a charge on their assets which they usually will have), or go into liquidation.
The problem is that stuff can and does go missing from businesses in 'terminal' stages, and there is little one can do about it. You can talk to the Receiver - he has a responsibility for looking after the assets - but if he doesn't co-operate then you can whistle in the wind. A Receiver is the judge, jury and executioner and short of setting fire to the premises he can do what he wants (as I well know).
Schools have been known to 'lose' exam records for students who changed schools. Airfield politics can get quite 'interesting'; such is aviation.