When dealing with immigration and asylum law, particularly regarding a case that may be contested by the government, finding administrative guidance promulgated by USCIS and case law produced by judicial bodies such as the Executive Office of Immigration Review (EOIR) and the Board of Immigration Appeals (BIA) is essential. Information about these decisions can be found in the following resources:
The U.S. Citizenship and Immigration Services website describes Administrative Appeals Office decisions as such: "[t]he Administrative Appeals Office (AAO) generally issues our appellate decisions as non-precedent decisions, which apply existing law and policy to the facts of a given case. After review by the Attorney General, we may also issue precedent decisions to provide guidance to adjudicators and the public on the proper interpretation and administration of immigration law and policy. Additionally, USCIS may 'adopt' a non-precedent decision to provide policy guidance to USCIS employees in making determinations on applications and petitions for immigration benefits."