Having BPP status means you are a member of a class of persons set up under the British Nationality Act 1981. As such, you have an association with former protected states or other territories under British control.
What does British Protected Person mean?
Certain individuals would have become a British protected person on the 1st of January 1983 if:
They were a citizen or a national of Brunei.
They were already holding British protected person citizenship.
When they were born, they would have been a stateless person in the United Kingdom or an overseas territory, due to one the parents being a British protected person.
But, in most cases, individuals would have lost their British protected person status if:
They gained any other nationality or any other citizenship.
The territory they were connected with became independent and the person then became a citizen of that particular country.
Your Rights as a British Protected Person
British protected persons can:
Hold a British passport.
Get consular assistance and protection from United Kingdom diplomatic posts.
But, holding this particular status means:
You would still be subject to immigration controls. In this case, you would not have the 'automatic' right to live or work in the United Kingdom.
The European Union (EU) would not consider you as a United Kingdom national.
Becoming a British Protected Person
There are certain circumstances where you can register as a British protected person (BPP). But, it would only be possible if all these apply to your situation:
You are a stateless person (and you always have been).
You were born in the United Kingdom or one of the overseas territories.
Your father or your mother was a British protected person at the time of your birth.