the home office does not issue information on these cases and is resistant to answering questions, for example under the freedom of information act 2000. it appears that the government usually waits until the person has left britain, then sends a warning notice to their british home and signs a deprivation order a day or two later. appeals are heard at the highly secretive special immigration appeals commission (siac), where the government can submit evidence that cannot be seen or challenged by the appellant.