"Crimmigration" recognizes how laws and policies throughout different states contribute to the convergence of criminal law enforcement and immigration law. For example, states are implementing a variety of immigration related criminal offenses that are punishable by imprisonment. California, Oregon, and Wyoming criminalize the use of fraudulent immigration or citizenship documents. Arizona allows judges to confine witnesses in certain "criminal" cases if they are suspected of being in the U.S. without documentation. The most common violations of immigration law on the federal level are unauthorized entry (a federal misdemeanor) and unauthorized reentry (a federal felony). These "offenses" deemed as "crimes" under immigration law set the tone of "crimmigration" and for what García Hernández refers to as the "removal pipeline" of immigrants.