It's hard to actually "give up citizenship". A British friend (who travels lots), said that if you are ever required to renounce British citizenship, you go down the local embassy/consulate, tell the offical that you are renouncing British citizenship, and hand over your passport. They do some writing, give you back your passport and a letter saying "$NAME has renounced their British citizenship at $DATE..." and wish you well.
You now have the proper paperwork, and your passport!
Some countries essentially don't let you give up your citizenship. If you were a citizen of Iran and fled and got citizenship of another country, the Iranian government still views you as an Iranian citizen, and go back to Iran, then they might feel free to arrest you.
You can easily apply to get your British citizenship back. I suspect they'd automatically reissue it, unless you've committed a crime or something perhaps. Of course it'd never be guaranteed. Reading between the lines though, I think its more a formality to appease other countries. In any case I'm not tempted to try it and IANAL. :)
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It's hard to actually "give up citizenship". A British friend (who travels lots), said that if you are ever required to renounce British citizenship, you go down the local embassy/consulate, tell the offical that you are renouncing British citizenship, and hand over your passport. They do some writing, give you back your passport and a letter saying "$NAME has renounced their British citizenship at $DATE..." and wish you well.
You now have the proper paperwork, and your passport!
Some countries essentially don't let you give up your citizenship. If you were a citizen of Iran and fled and got citizenship of another country, the Iranian government still views you as an Iranian citizen, and go back to Iran, then they might feel free to arrest you.
You can easily apply to get your British citizenship back. I suspect they'd automatically reissue it, unless you've committed a crime or something perhaps. Of course it'd never be guaranteed. Reading between the lines though, I think its more a formality to appease other countries. In any case I'm not tempted to try it and IANAL. :)