Tim Zehring, a retired Arizona police officer who created the “Crime Free Lease Addendum” to reduce crime in rental housing, now finds his program under legal and ethical scrutiny. Investigations reveal the addendum disproportionately impacts low-income and minority tenants, increases evictions without reducing crime, and relies on outdated, racially charged training materials. Though Zehring defends the program as a necessary tool for safety, critics argue it violates civil rights and fuels housing instability.