score:5
It becomes a little more tricky, but you're still fine. The same procedure applies for if the Government or anyone else lost a 'normal' British passport. You'll first need to cancel the passport, and then apply for a new passport following the instructions here.
After cancelling your passport, you'll get a reference number which can be used to support your application for your new BN(O) passport.
In particular, note:
You need to send:
- original BNO passport (except if it was lost or stolen)
When applying for the replacement passport, the procedure is much the same as if the passport was not lost. Identity checks include checking your Hong Kong identity card, your other passports (if applicable), and having someone from a 'recognised profession' confirm your identity.