Human rights in the Soviet Union were severely limited. The Soviet Union was a totalitarian state from 1927 until 1953 and a one-party state until 1990. Freedom of speech was suppressed and dissent was punished. Independent political activities were not tolerated, whether they involved participation in free labor unions, private corporations, independent churches or opposition political parties. The citizens' freedom of movement was limited both inside and outside the country. The state restricted citizens' rights to own private property.
In practice, the Soviet government significantly curbed the rule of law, civil liberties, protection of law and guarantees of property, which were considered examples of "bourgeois morality" by Soviet legal theorists such as Andrey Vyshinsky. The Soviet Union signed legally-binding human rights documents, such as the International Covenant on Civil and Political Rights in 1973, but they were neither widely known or accessible to people living under Communist rule, nor were they taken seriously by the Communist authorities. Human rights activists in the Soviet Union were regularly subjected to harassment, repressions and arrests.
The regime maintained its political power by means of the secret police, propaganda disseminated through the state-controlled mass media, personality cultism, restriction of free discussion and criticism, the use of mass surveillance, political purges and persecution of specific groups of people. In the 1977 constitution, the Communist Party was, for the first time, openly and formally declared the leading force in the country.
According to the Universal Declaration of Human Rights, human rights are the "basic [rights] and freedoms to which all humans are entitled." including the right to [life] and [liberty], freedom of expression, and equality before the law; and social, cultural and economic rights, including the right to participate in culture, the right to food, the right to work, and the right to education.
The Soviet conception of human rights was very different from international law.