To define the term “expropriation” as a legal institute is not an easy task at all, bearing in mind that a legal way to carry out expropriation is both narrower and wider than expropriation in a material sense. On one hand, the legal regime of expropriation represents a method of establishing not only expropriation in a material sense, but also some individual legal institutes that are different from expropriation in a material sense. It means that besides expropriation in a material sense, there is also expropriation in a formal sense. On the other hand, expropriation in a material sense exceeds the framework of expropriation in a formal sense, either as a part of legislative legal regulation of legal relationships in relation to ownership...