???Innocent tenant??? defense???Section 16(f).In 1996, HUD issued a policy directive, PIH 96-16, on the requirement that public housing leases allow termination of housing assistance if household members or their guests engage in any drug-related or other criminal activity that ???affects the health, safety, and peaceful enjoyment of the premises??? by other residents (42 U.S.C. ?? 1437d(l)(6)).