Review of reference and legal system "Consultant plus" and its ability to search legal problems

The article examines the current opportunities of legal-reference system "ConsultantPlus". There are possible find information and compare document revisions. The article contains historical excursus in the development of legal-reference system, and also shows the wider potential of information bases. Legal reference system "Consultant Plus", is largely ahead of all the current modern reference systems existing in the market of information technologies.