HeinOnline This link opens in a new windowHeinOnline is the world's largest fully searchable, image-based government document and legal research database. It contains comprehensive coverage from inception of U.S. statutory materials, U.S. Congressional Documents and more than 2,600 scholarly journals. HeinOnline provides topic specific databases including all of the world's constitutions, all U.S. treaties, collections of classic treatises and presidential documents, Criminal Justice, Religion and the Law, and Women and the Law among others.