Sanctuary policies; prohibit certain government entities and employees from adopting or interfering with federal immigration enforcement.

HB 538 prohibits Mississippi state and local governments, including public schools and universities, from adopting policies that interfere with federal immigration enforcement. It requires all government entities to cooperate with federal immigration authorities, share information about immigration status when requested, and comply with immigration detainer requests. Violations could lead to legal action against the government entity, as the law waives sovereign immunity for such cases. The bill takes effect July 1, 2026.