Neither online service has a separate database that combines all of their Native American information. Of course, they both have a full range of federal and state judicial, administrative, and statutory databases. They also have some specific databases that may be of interest to researchers in Native American law.
America: History and Life: Provides indexing & abstracting of U.S. and Canadian history, area studies, and current affairs literature. Coverage from 1964 - present includes many topics such as Indian-White relations, folklore, ethnic studies, & cultural history. WESTLAW (AHL).
American Indian Law Review: Full text coverage from 1983 - present. WESTLAW(AMINDLR).
Ethnic Newswatch: Indexes newspapers and other publications from the ethnic and minority press in America. Coverage includes many Native American publications. LEXIS(NEWS;ENW). File not available to laws school subscribers.
Interior Board of Indian Appeals Decisions: Can be accessed from both services: LEXIS (ENVIRN;IBIA) and WESTLAW (IBIA). Contains adjudicative decisions by the IBIA in appeals of decisions made by officials of the Bureau of Indian Affairs (including the Commissioner of Indian Affairs) and appeals from Administrative Law Judge probate decisions in Native American matters.
Native American Law - Law Reviews, Texts and Bar Journals: WESTLAW (NAM-TP)
Native American Law Practice - Area databases on WESTLAW: Federal Native Americans Law (FNAM) includes selected cases, statutes, and regulations pertaining to Native American issues.
Penn State University Libraries A-Z Databases list includes access to over 800 e-resources. Most of the databases are nonlegal, however, they may contain pertinent legal and nonlegal information valuable to your research. The list of databases does increase as new resources are acquired by the University Libraries. Some databases that might be of interest are: