He described harsh government controls in restive Xinjiang and Tibet as "ridiculous national policy", and also attacked a now-disgraced security tsar for abuse of power, before his downfall.
In the German capital, he had a romance with the actor Marlene Dietrich, and – according to Barki – is also rumoured to have had a fling with Anastasia, the mysterious daughter of Russia's last tsar, Nicholas II.
Related: Grant Shapps sacked from cabinet in Cameron's reshuffle Two senior figures have lost the right to attend cabinet: Grant Shapps, the Tory chairman, who was demoted to an international development minister, and Eric Pickles, the communities secretary, who will become the government's anti-corruption tsar.
It was chaired by cancer tsar Sir Mike Richards jointly with John Melville, then head of Roche Products in the UK.
Mike Trace, formerly a government deputy "drugs tsar", said the reported £250,000 cost of the investigation had been a waste of money.
Githongo eventually took an official position as Kenya's first anti-corruption tsar.
But the Conservatives claimed the proposal has the support of the Labour MP Frank Field, and Alan Milburn, the government's social mobility tsar.
He funded and attended a lavish event in a Habsburg palais in Vienna last year for leaders of the European far right, ostensibly devoted to marking 200 years since the alliance between the Russian tsar, the Austro-Hungarian emperor and the king of Prussia following Napoleon's defeat.
Farrell, 76, is the Tories' architecture tsar of choice, acting as adviser to both David Cameron and Boris Johnson on matters of the built environment.
The education secretary Michael Gove's response to the controversy has been to send a counter-terrorism tsar into the city, provoking incredulity from the chief constable of West Midlands police.
But even the company's bullish "car tsar", the vice-chairman, Bob Lutz, admits that the potential market for these vehicles has declined dramatically with higher oil prices.Misreading the SUV market might be bad enough, but GM also played down the need for a new generation of more fuel-efficient "crossover" vehicles.
