Kenneth Good, the Australian political scientist at the University of Botswana expelled on the orders of President Festus Mogae after questioning the way the head of state's successor was to be chosen without election, has lost his final appeal.
Five judges of the Appeals Court in Lobatse confirmed that the President had acted within his powers in declaring Professor Good a prohibited immigrant. He had been a resident of the country for almost 17 years.
There was one dissenting voice on the issue of whether the President had acted irrationally. Justice Lord John Coulsfield expressed reservations about the Immigration Act and called for its revision to conform to international human rights conventions that Botswana had signed.
The University of Botswana is yet to make a public statement on Professor Good's deportation. It is understood that the university is in the process of determining how to wind up his appointment and how to set a new, final date of employment since he is unable to perform his duties.
Professor Good, who is currently in the UK, angered the Government with his criticism of the evictions of Bushmen from their ancestral homes in the Central Kalahari Game Reserve.
President Mogae told BBC Two's Newsnight last week: "(Professor Good) is a rogue and a vagabond, he's not a gentleman. I am determined to keep him out of this country."