This bill introduces a new chapter to Title 18 of the Idaho Code, establishing legal definitions and outlining offenses related to illegal immigration, specifically focusing on illegal entry and reentry into the state. It defines terms such as "alien" and "port of entry," and specifies that individuals who enter Idaho unlawfully from a foreign nation or who reenter after being deported can be charged with misdemeanors or felonies, depending on their circumstances. The bill also prohibits the abatement of prosecution based on immigration status determinations and sets forth conditions under which individuals may be ordered to return to their country of origin.

Additionally, the bill amends Title 5 and Title 19 of the Idaho Code to provide civil immunity and indemnification for local and state officials, employees, and contractors who enforce the provisions of this new chapter. This includes protections against liability for actions taken in the course of their duties related to immigration enforcement. The bill emphasizes that indemnification payments will not be subject to state limits and outlines the process for reporting compliance with return orders. The act is declared to be an emergency measure, taking effect immediately upon passage and approval.