Prosecutors say that they have sufficient grounds to believe that the member of the Seimas has in the past voted in favor of legislation benefiting the interests of MG Baltic, one of Lithuania's biggest business groups.

In his request to the Seimas, the prosecutor general says that such actions by the lawmaker constitute an abuse of his constitutional powers, a breach of his oath and violations of the Seimas Statute, the law on Political Parties and the Code of Conduct for State Politicians.

According to the Prosecutor General's Office, material collected as part of a pre-trial investigation indicates that Steponavičius, who was deputy head of the Liberal Movement's political group in the Seimas during the 2012-2016 tenure, maintained personal contacts with "the head of a business concern" and held talks on funds that were used to illegally finance his political party and Gintaras Steponavičius' Support Foundation, as well as his parliamentary election campaign.