Zeman has been criticized for his contacts with the powerful Czech lobbyist Miroslav Šlouf, formerly his chief adviser. While Zeman was prime minister, Šlouf maintained contact with the controversial entrepreneur František Mrázek, nicknamed the "Godfather of Czech Organized Crime". Šlouf and Mrázek met and exchanged information at the Office of the Czech Government. Mrázek was assassinated in 2006. In leaked wiretapping records, he nicknames Zeman "mlha" ("fog") and claims that Zeman "could not be bribed, and wanted only a sandwich, three pickles and for people to like him." In 2010, Šlouf and Martin Nejedlý, a representative of the Russian oil company LUKoil in the Czech Republic, were the main donors to his Party of Civic Rights – Zemanovci, but Zeman denied that he had any connection with Lukoil.