Meeting the man is a sobering experience, and even our Russian minders from Moscow seem nervous.
"Stick strictly to the questions that you indicated you would ask beforehand," one of them tells me as we wait in the corridors of the heavily fortified Chechen-government compound in the heart of Grozny.
And his loyal foot soldiers - nicknamed "Kadyrovites", to his great annoyance - stand accused of torturing, kidnapping and murdering anyone who has obstructed the Kremlin's goal of restoring order in the troubled republic.
To the distaste of some politicians in Moscow, there is another entry on his CV that is equally unsettling: he is a former separatist rebel who fought against the Russians, only to change sides and join them - for now.
He frequently voices his admiration for Kadyrov senior, a former Russian-backed President of Chechnya who was murdered in 2004 in a bomb attack, and this occasion is to be no different.
A tearaway in his youth, Kadyrov explains ruefully how he has always tried - but often failed - to live up to his father's expectations.
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Kadyrov insisted that it wasn't him, referring to it only as "a provocation".Create a 100% Free Account to Meet Someone Tonight!Ramzan Kadyrov pairs pinstripes with a Kalashnikov. He counts Mike Tyson as a friend, and President Putin as his closest confidant.His "pets" include a lion and a rare and endangered tiger.He is a keen boxer who counts the convicted rapist Mike Tyson among his friends, and he has a penchant for ostentatiously handing out wads of 1,000-rouble (£20) notes among his subjects.The federal Russian flag stands alongside the green flag of the Chechen republic, and from one wall, a framed black-and-white picture of Che Guevara stares down.Kadyrov clearly identifies with the Argentine who made his name in Cuba, since his fan club (yes, he does have a fan club) often waves aloft stencilled posters of the Chechen leader wearing Che's beret and adopting the same uncompromising stare.Bereaved colleagues of the murdered journalist Anna Politkovskaya have suggested that he may have ordered her killing as retribution for her investigations into human-rights abuses in Chechnya.Meanwhile, human-rights groups claim that he has personally overseen horrific torture sessions in several private dungeons said to be near or beneath his homes.Adored by his war-weary countrymen, he's been accused of torture at home and murder abroad.Andrew Osborn gets a rare audience with the self-styled Che of Chechnya "King Ramzan" swaggers into his Grozny office like a man with the world at his feet.