Constitutional law sounds abstract until it becomes the difference between a conviction and a dismissal. The Rossback Firm regularly handles cases where the outcome turns on whether police had probable cause to make an arrest, whether a search was conducted within proper limits, or whether evidence the state wants to use was obtained in a way that Washington courts will allow. These constitutional considerations involving probable cause and search and seizure decide cases far more often than most people understand, and they are where careful defense work tends to yield the best results.

Washington provides defendants two layers of protection. The Fourth Amendment to the United States Constitution sets a federal floor. Article I, Section 7 of the Washington Constitution sits above it, in many respects providing broader rights than its federal counterpart. The interaction between those two provisions shapes how cases get litigated in Grays Harbor County and across the state.

What Probable Cause Actually Requires

Probable cause is the threshold the state must meet before making an arrest or obtaining a warrant. The standard is more than reasonable suspicion but less than the proof beyond a reasonable doubt required for conviction. Officers need facts and circumstances that would lead a reasonable person to believe a crime has been committed and the person to be arrested or searched is connected to it.

The probable cause inquiry is fact-specific. A vague tip, an officer’s hunch, or proximity to suspicious activity is not enough on its own. Courts look at the totality of the circumstances, including the source and reliability of any informant information, the corroboration officers were able to develop, the officer’s own observations, and how each piece of information fit together at the moment the decision to arrest or search was made.

Defense work at this stage involves dissecting the affidavit or the testimony that supported the arrest or warrant. Statements made on flimsy foundations, conclusions drawn without supporting facts, and information presented in a misleading sequence all become grounds for challenge. Under Franks v. Delaware and its Washington analogues, an affidavit can be challenged when it contains material misstatements or omissions made knowingly or with reckless disregard for the truth. A successful Franks challenge can lead to suppression of everything that flowed from the warrant.

How Search and Seizure Law Differs Under Washington’s Constitution

Article I, Section 7 of the Washington Constitution reads differently than the Fourth Amendment, and Washington courts have used that text to provide protections that the federal courts do not recognize. The state provision protects the right to be free from disturbance in private affairs without authority of law. That phrase has been interpreted to require, as a starting point, a warrant supported by probable cause for most searches.

Several federal exceptions to the warrant requirement either do not apply in Washington or apply in a narrower form. The automobile exception, which allows warrantless searches of vehicles based on probable cause under federal law, has been substantially limited in this state. Searches incident to arrest are confined to the area within the arrestee’s immediate control at the time of arrest, not the broader sweep federal courts allow. Inventory searches must follow standardized procedures and cannot be used as a pretext for investigative searches.

These differences matter in everyday cases. A traffic stop in Aberdeen that produces a search of the trunk, a search of bags found in the back seat, or a search of a phone left on the console will be evaluated under Washington’s stricter standards. Evidence that would survive review in a federal prosecution sometimes does not survive review in a state criminal case here.

Constitutional Considerations Involving Probable Cause and Search & Seizure in Traffic Stops

Traffic stops are one of the most common settings where constitutional issues arise. The stop itself must be supported by reasonable suspicion of a specific traffic infraction or criminal violation. Once made, the stop has to be limited in duration and scope to the original purpose. Officers cannot extend the stop to investigate unrelated matters without independent reasonable suspicion to justify the extension.

The Washington Supreme Court’s decision in State v. Arreola and the line of cases that followed have made clear that even brief extensions of a traffic stop for unrelated questioning can violate the constitution when they are not supported by independent grounds. Asking for consent to search after the original purpose of the stop is complete, calling for a drug-sniff dog without independent suspicion, or running additional record checks beyond what the original violation justifies all raise issues that defense counsel will examine.

Driver and passenger questioning is also limited. Officers may identify occupants and run basic checks, but extensive questioning of passengers about unrelated matters can transform an ordinary stop into an unlawful seizure. The point at which a stop becomes a seizure of a passenger, rather than just the driver, is something Washington courts have addressed repeatedly.

Searches of Homes, Phones, and Personal Effects

The home receives the strongest constitutional protection in Washington. Warrantless entries into residences are presumptively unlawful and survive only when one of a few narrow exceptions applies, such as consent given by someone with authority over the premises, exigent circumstances supported by specific facts, or hot pursuit of a fleeing felon.

Cell phones occupy a category of their own. Washington courts have followed the United States Supreme Court’s decision in Riley v. California and gone further in some respects, requiring warrants that are particular about the data to be searched. A general warrant for a phone, or a search that exceeds the scope authorized by the warrant, can result in suppression of the data extracted. Text messages, photos, location data, and app activity all fall within this analysis.

Searches of bags, containers, and personal effects also require particular scrutiny. The fact that a bag is found in a vehicle does not automatically make it subject to search. The fact that a bag is in the possession of a person being arrested does not automatically make it subject to search after the arrest. Each container raises its own questions about ownership, expectation of privacy, and the scope of any warrant or exception that applies.

How Suppression Motions Work in Practice

When an arrest or search violates constitutional limits, the remedy is exclusion of the evidence. In Washington, suppression issues are litigated through motions filed under CrR 3.6 or CrRLJ 3.6. The motion is supported by a written submission identifying the legal grounds, and the court holds an evidentiary hearing where officers testify and are cross-examined.

Successful suppression motions take work. They require a careful read of every report, every recording, and every transcript. They require legal research that goes beyond the surface, identifying the specific Washington cases that govern the particular facts. They require cross-examination that exposes the gaps between what officers wrote and what actually happened. The reward, when the motion succeeds, is often the collapse of the prosecution’s case.

Working With the Rossback Firm

Constitutional defense work is detail work. It is the line in the report that contradicts the timeline. It is the moment in the body camera footage that does not match the narrative. It is the case from the Washington Court of Appeals that turns the analysis in a different direction. The Rossback Firm handles criminal defense matters across Grays Harbor County with attention to those details, because they are often where cases are won.

Constitutional considerations involving probable cause and search and seizure run through nearly every criminal case, from misdemeanor traffic offenses to serious felony investigations. Anyone facing charges where the evidence came from a stop, a search, or an arrest is better served by speaking with counsel who will examine the constitutional foundation of the state’s case, not just the surface allegations. The Rossback Firm offers consultations for clients ready to evaluate whether their rights were respected and what options follow from the answer.