for normal political case or any other case! (whom refused in UK)
The Iranian authorities take such cases very
seriously because whoever travels without a passport arouses suspicion of
having joined an opposition group and must be interviewed over how, when, which
border, which city, which country and who support them to travel to Europe and
why they chose to go to UK; did they train in spying for the UK, and with
checks run on their background and previous records.
I know one of my friends was in the UK as an
asylum seeker and in early 2006 he returned to Iran voluntarily with a sum of £3500 from the UK government to start a job in Iran. For the first
six months he was at ease and no one asked him any questions till he tried open
his own takeaway business but then he could not get planning permission from
the government, and again he tried to become a taxi driver, but the government
would not give him a taxi licence even though he passed the exam. He was not
able to apply for an Iranian passport for seven years. This person was not
politically active with any group and he had never been arrested in Iran before
he left Iran.