Dutch lawyer Alex van der Zwaan has become the first person sentenced in Robert Mueller’s Russia probe

A DUTCH lawyer has been handed 30 days behind bars and a $26,000 fine for lying to investigators in Robert Mueller’s Russia investigation.

Alex van der Zwaan leaves Federal District Court in Washington as a protester holds a sign saying ‘lock em up’. Picture: AP

A DUTCH lawyer who is the son-in-law of a Russian oligarch was sentenced to 30 days behind bars and fined $US20,000 ($26,000) — the first person sentenced in special counsel Robert Mueller’s ​probe into Moscow meddling in the 2016 election.

​Alex van der Zwaan, who has no known ties to the Trump campaign, entered a guilty plea in February on charges that he lied to federal agents and was sentenced in federal court in Washington, the New York Post reports.

Lawyer Alex van der Zwaan (left), has been sentenced and fined for lying to Robert Mueller’s Russia probe. Picture: AFP

​Van der Zwaan, 33, lied to Mueller’s prosecutors about his work in Ukraine with former Trum​p campaign chairman Paul Manafort and his business associate Rick Gates.

​Mueller’s charges allege that van der Zwaan and Gates talked with a businessman who was also a Russian intelligence agent during the last months of the campaign.

Former Trump campaign official Rick Gates (L) and former Trump campaign chairman Paul Manafort. Picture: AFP

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In court papers, Mueller referred to the officer as “Person A,” who reports later revealed was Konstantin Kilimnik, a Ukrainian business contact for Manafort and Gates.

Manafort has pleaded not guilty to charges of conspiracy, money laundering and tax evasion.

Gates pleaded guilty in February and has been co-operating in Mueller’s probe.

US President Donald Trump, right, and Russia President Vladimir Putin. Picture: AP

Van der Zwaan is married to the daughter of German Khan, a billionaire who owns Russia’s largest financial investment company, the Alfa Group.

He is expected to be sentenced to six months in prison as part of a plea agreement. He faced a five-year sentence.

This article originally appeared in the New York Post and is republished here with permission