Official information generated by public organizations include congressional records of the Japanese Diet or those from overseas, laws, court records, administrative reports (white papers, surveys, annual reports etc.) and statistics. This information is released publicly in the form of documents (booklets).
Such official documents are increasingly being disclosed over the Internet, so it may be beneficial to begin your search for official documents with the Internet. However, not all official information is currently on the Internet. Some information is only partially available, while the availability of others is limited to the newest versions.
Caution is required when using the Internet however, since in certain fields and circumstances, such as in the citation of Case Law, precedence is placed on information published in documents such as books and periodicals over information on the Web.