Article I, section 7 of the Washington Constitution protects a person from having their “home invaded, without authority of law,” which generally requires a valid warrant. There is, however, an exception to the warrant requirement when officers obtain a valid consent to search. The consent except applies only when the consent is voluntary, the person has the authority to consent, and the search is within the scope of the consent.
Pursuant to State v. Ferrier, before entering a home when conducting a “knock and talk,” an officer must inform the person they have the right to refuse consent, revoke consent, and limit the scope of their consent to certain locations in the home. An important aspect of the court’s analysis in Ferrier was the constitutional protection of a person’s home. The court also expressed concerns about officers using the knock and talk to avoid getting a search warrant. The Ferrier court concluded officers violate article I, section 7 if they fail to inform a resident of the right to refuse consent to a warrantless search of the home.
The state recently appealed an order suppressing evidence officers obtained in multiple warrantless searches of a fenced pasture after the trial court suppressed the evidence based on the Ferrier rule.