Complex sentence: The World Passport is similar in appearance to a national passport or other travel document, the appearance is so close that in 1974 a criminal case was lodged against Garry Davis in France regarding his issuance of World Passports.
Split into simpler sentences: The World Passport is similar in appearance to a national passport or other travel document. Indeed, the appearance is so close that in 1974 a criminal case was lodged against Garry Davis in France regarding his issuance of World Passports.