Analysis of information sources in references of the Wikipedia article "Kibitka" in English language version.
Unter Kibitkenjustiz versteht man die Gewohnheit Missliebige auf dem 'Verwaltungswege' in das Land am Ural zu befördern, was bei 'Standespersonen' in früherer Zeit per Kibitke geschah.
Russian law did not guarantee free choice of a dwelling place, but gave officials the right to assign a residence to the tsar's subjects in any part of the Empire, even in Siberia. Russian officials could seize and transport to Siberia by administrative means persons of forbidden opinions, sometimes even those who on accusation had been tried and acquitted. Transportation was usually effected by Kibitka, springless vans, - whence arose the popular expression 'Kibitka justice,' - and the family of a suspect often knew not even where he had been taken.