What is the test for determining when, if ever, a failure of a state or local governmental entity or its agent to provide adequate protective services constitutes a violation of the individual's due process rights?

Because of the inconsistent approaches taken by the lower courts in determining when, if ever, the failure of a state or local governmental entity or its agents to provide an individual with adequate protective services constitutes a violation of the individual's due process rights, see Archie v. City of Racine, 847 F.2d 1211, 1220-1223, and n. 10 (CA 7 1988) (en banc) (collecting cases), cert. pending, No. 88-576, and the importance of the issue to the administration of state and local governments, ....

Id., at 1002.