How to check if someone is banned in dubai?
a friend of mine was working in Dubai, and he traveled to his home country without informing his previous employer of his resignation. His visa was cancelled after 6 months of leaving the country. he worked 4 years in his last company, and his visa was cancelled on Dec 2012.now he is planning to come back. no debt outstanding nor criminal records. is he banned? any authority or website to check his status?