If a “knock and talk” crosses the constitutional line, can what officers saw or learned still justify 
a search warrant?
TL;DR Quick Take: North Carolina v. Norman tests the limits of North Carolina’s knock and talk doctrine and asks whether a search warrant can survive when officers use observations gathered during a questionable encounter on private property.
The decision turns on three interrelated questions:
No. COA17-477-2
Filed: 20 August 2019
Search Warrants are subject to Fourth Amendment protections against unreasonable searches and seizures. 
Without “probable cause,” a search is ordinarily deemed “unreasonable” and therefore improper. As is the case with many legal issues involving criminal charges, there are certain exceptions.
Searches of a home or residence invite additional scrutiny by Courts, given there is a substantial expectation of privacy within “hearth and home.”
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