Russian businessman Viktor Baturin, the brother-in-law of former Moscow mayor Yury Luzhkov, was detained on Monday in the Russian capital on fraud charges, a Moscow police spokesperson said on Tuesday.
In early June this year, Baturin, the brother of property construction tycoon Yelena Baturina, received a suspended three-year jail term for fraud.
He was found guilty of selling one property in downtown Moscow to two men for $857,000 and $1.5 million within the space of one month in 2008.
Baturin pleaded not guilty to the charges against him.
The Presnensky district court also fined Baturin $10,800 in damages.