Community-based crime victim advocacy programs that provide services to undocumented immigrant survivors of crimes can minimize risks to their program, funding, employees, and clients by adopting and following policies that take the laws on harboring undocumented immigrants into account. This Advisory answers common questions about providing shelter and other program services to undocumented victims, describes the law and federal policy (as of the Advisory’s publication date), and proposes best practices for programs, but it is not legal advice. Immigration and criminal laws vary from region to region, and federal immigration enforcement policies are constantly changing. Programs should analyze their program-specific risks, their community’s particular needs, and the laws in their jurisdiction—including legal duties associated with an agency’s funding sources—as they design or update program policies. Consulting a local immigration attorney with criminal law experience is highly advisable.