Search, Seizure & Suppression in Maryland Criminal Cases

The Discovery of Evidence Does Not End the Constitutional Analysis

Police may discover a gun, drugs, evidence from a cell phone, statements, or other incriminating evidence during an investigation. But the fact that evidence exists does not automatically mean the State may use it in court.


The Fourth Amendment protects against unreasonable searches and seizures. Maryland criminal cases involving traffic stops, vehicle searches, searches of a person or belongings, investigative detentions, warrants and arrests may require careful examination of how police obtained the evidence.

Kathleen M. Kirchner is a Maryland criminal defense trial attorney and former prosecutor who examines the facts leading up to a search or seizure—not simply what police ultimately found.



In some cases, the events occurring in the minutes or even seconds before evidence is discovered can determine whether that evidence is admissible in court.

When Does an Encounter With Police Become a Seizure?

Not every interaction between a police officer and a citizen is legally considered a seizure.


Police generally may approach someone and ask questions. A person ordinarily does not have to answer questions during a consensual encounter and may decline requests for consent to search.



But an encounter may become a seizure when, considering the circumstances, a reasonable person would no longer feel free to leave or terminate the encounter.


That distinction matters.


Courts may examine the number of officers present, whether police vehicles blocked movement, the officer’s words and tone, whether commands were given, whether identification or property was retained, physical positioning of officers and other circumstances surrounding the encounter.


The constitutional analysis therefore does not necessarily begin when an officer announces that someone is under arrest.


It may begin much earlier.

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Many Maryland criminal cases involving drugs, firearms and other evidence begin with an ordinary traffic stop.

Police need a lawful basis for the stop.



But even when the initial traffic stop is lawful, that does not automatically authorize an unlimited investigation into unrelated criminal activity.

A traffic stop has a purpose. Officers may ordinarily address the traffic violation and perform legitimate tasks associated with the stop.


A defense attorney should examine whether police remained focused on that mission or instead prolonged or transformed the encounter into an unrelated criminal investigation without the constitutionally required justification.


Questions may include:

Traffic Stops Have Constitutional Limits


Why was the vehicle originally stopped?


What did the officer do after making the stop?


How long did those tasks reasonably require?


When did questioning about unrelated criminal activity begin?


Was the driver or passenger free to leave?


Was the stop extended to investigate drugs, firearms or another suspected offense?


What facts existed before that extension occurred?


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Reasonable Suspicion Is Not the Same as Probable Cause

Different police actions require different levels of constitutional justification.


Reasonable articulable suspicion may permit a limited investigative detention when officers can identify specific facts supporting a reasonable belief that criminal activity is occurring.


Probable cause is a higher standard and may be required for an arrest or certain searches.



Neither standard should be based merely on an officer’s conclusion or hunch.


The sequence matters.


A court reviewing a suppression issue may need to determine exactly what the officer knew at the moment the officer acted.

Information discovered afterward ordinarily cannot retroactively justify an earlier unconstitutional detention or search.

A Terry Stop Is Not Automatically a Terry Search

The authority to temporarily detain someone and the authority to frisk that person are related but distinct constitutional questions.



Under Terry v. Ohio, an officer with reasonable suspicion of criminal activity may, under appropriate circumstances, briefly detain a person to investigate.


A protective frisk involves a separate officer-safety inquiry.


A Terry frisk is intended to locate weapons that could present a danger. It is not supposed to become a general evidence search merely because an officer wants to determine what someone is carrying.


That distinction becomes particularly important when police reach into pockets, bags, backpacks, purses or other containers.


The defense should examine not only whether the initial stop was lawful, but whether each additional intrusion remained within constitutional limits.

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Firearms, Reasonable Suspicion and Maryland Law After Bruen

The constitutional analysis becomes especially important when police encounter someone who may possess a firearm.



The United States Supreme Court’s decision in New York State Rifle & Pistol Association v. Bruen recognized a constitutional right to carry a handgun publicly for self-defense, subject to constitutionally permissible regulation.


That changed an important premise underlying some earlier search-and-seizure cases involving firearms.


In Hicks v. State, a reported 2026 decision, the Appellate Court of Maryland considered what Bruen means for a police officer’s reasonable-suspicion analysis when an individual is believed to possess a concealed handgun.


The court concluded that possession of a handgun, standing alone, does not establish reasonable suspicion that the person is engaged in criminal activity.


Police need additional facts supporting reasonable suspicion that the firearm is possessed unlawfully or that other criminal activity is occurring.


That does not mean that police can never frisk a person who possesses a firearm.


If officers have an independent lawful basis for an investigative stop, the separate constitutional principles governing a limited protective frisk may apply.


But the distinction matters:


Possessing a firearm is not, by itself, the same thing as committing a crime.


And authority to conduct a protective frisk does not necessarily authorize a full evidentiary search of someone’s pockets, bags or belongings.

Consent to Search Has Limits

Police frequently ask for consent to search when they do not otherwise have authority to conduct a search.



Consent must be voluntary.


The circumstances surrounding alleged consent matter, including what the officer requested, what the person actually agreed to and whether the person’s words or actions limited the scope of permission.


Consent to one action does not necessarily constitute consent to everything an officer might subsequently want to search.

A person may also limit or withdraw consent.


When the State relies on consent to justify a warrantless search, the precise interaction between police and the individual can become critical.


Body-worn camera footage may provide important evidence of what was actually requested, said and done.

Passengers Have Constitutional Rights Too

A passenger does not lose constitutional protections simply by riding in someone else’s vehicle.


Traffic-stop cases can raise separate questions concerning the driver, passengers, the vehicle itself and personal belongings located inside it.


A defense attorney may need to examine:


  • What authority did police have over the passenger?
  • Was the passenger detained?
  • Was the passenger ordered from the vehicle?
  • Did police request identification?
  • Was the passenger questioned about unrelated criminal activity?
  • Who owned a particular bag or container?
  • Did anyone consent to its search?
  • Did the person giving consent actually have authority to do so?
  • What independent justification did police have for searching the passenger’s personal belongings?


The legality of a vehicle stop does not automatically answer each of those questions.

Body-Worn Camera Can Change the Constitutional Analysis

Police reports are important evidence.


They are not the only evidence.


Body-worn camera footage can reveal the timing and circumstances of a police encounter in ways a written report cannot.


It may show:


  • when emergency lights were activated;
  • where police vehicles were positioned;
  • how many officers were present;
  • the officer’s actual words and commands;
  • when questioning changed from the traffic violation to drugs, firearms or other suspected crimes;
  • whether consent was requested or given;
  • whether consent was limited or withdrawn;
  • what movements a person actually made;
  • when officers touched or seized property; and
  • whether the sequence shown on video corresponds with the later written account.


In suppression litigation, chronology can be critical.


The question is often not simply what happened, but what happened first.

Search Warrants Can Be Challenged

A warrant does not necessarily end the constitutional inquiry.


Courts generally give substantial deference to a warrant issued by a judge, but the defense may still examine the warrant application and the search conducted under it.


Issues can include whether probable cause supported the warrant, whether the information was stale, whether the warrant sufficiently described the place or information to be searched, whether officers exceeded its authorized scope, and in appropriate cases whether materially false or misleading information affected the probable-cause determination.


Digital searches can raise additional issues because a warrant for a phone, account or electronic device may expose enormous quantities of private information.


The defense should determine what the warrant actually authorized and compare that authority with what investigators actually searched and seized.

What Is a Motion to Suppress?

A motion to suppress asks the court to exclude evidence obtained in violation of a defendant’s constitutional or other legal rights.


Suppression litigation may concern:


  • physical evidence;
  • firearms;
  • drugs;
  • evidence obtained from vehicles;
  • evidence taken from a person or personal belongings;
  • statements to police;
  • identification evidence;
  • evidence obtained pursuant to a search warrant; or
  • evidence discovered as a consequence of an earlier unlawful police action.


A suppression hearing is an evidentiary hearing.


Police officers may testify and be cross-examined. Body-worn camera footage, photographs, reports, warrant materials and other evidence may become important to determining what actually occurred and whether the State has established a lawful basis for the challenged police conduct.

Constitutional Review Begins With the Timeline

Search-and-seizure analysis is intensely fact specific.


Changing one fact—or sometimes changing the order in which two events occurred—can change the constitutional analysis.


That is why review of a criminal case should begin before simply asking whether the State has incriminating evidence.


The questions include:


  • How did police get it?
  • What did police know before they acted?
  • What authority did they have at each stage of the encounter?
  • Did the justification for the police action exist before the search or seizure occurred?


When constitutional violations occur, suppression of unlawfully obtained evidence can fundamentally change the prosecution.

Frequently Asked Questions

  • Can police search my car just because they stopped me for a traffic violation?

    Not automatically. A lawful traffic stop gives police authority to address the traffic violation and perform certain related tasks, but a search generally requires an independent legal basis. The specific facts—including probable cause, consent, a warrant or another recognized exception—must be examined.

  • If I have a gun, can Maryland police automatically stop and search me?

    No. The Appellate Court of Maryland’s 2026 decision in Hicks v. State recognized that after Bruen, possession of a handgun by itself does not establish reasonable suspicion of criminal activity. Additional facts are required to justify an investigative stop. A lawful stop and a protective frisk involve separate constitutional questions.


  • Can police search my bag during a traffic stop?

    Not simply because the bag is present. The answer depends on facts including ownership of the bag, consent, probable cause, officer-safety considerations, the circumstances of the detention and any other claimed legal justification for the search.


  • Can I withdraw consent after telling police they can search?

    Consent may generally be limited or withdrawn. What matters can include exactly what was said, when consent was withdrawn and what police did afterward. Body-worn camera footage can be particularly important in resolving those questions.

  • Does nervousness give police reasonable suspicion to search me?

    Nervousness may be considered as one circumstance in a broader analysis, but nervousness alone does not automatically establish reasonable suspicion or probable cause. Courts examine the totality of the circumstances and the specific facts known to officers when they acted.

  • What happens if the judge finds that the search was illegal?

    When evidence was obtained through a constitutional violation and the exclusionary rule applies, the court may suppress that evidence, meaning the State cannot use it against the defendant. The practical effect depends on how important the suppressed evidence is to the prosecution’s case.

  • Can a search warrant still be challenged after a judge signed it?

    Yes. Depending on the circumstances, issues may include probable cause, staleness, particularity, the scope of the authorized search and whether materially false or misleading information affected issuance of the warrant.

Every Search-and-Seizure Case Begins With the Facts

Kathleen M. Kirchner represents individuals facing criminal charges throughout Maryland, including cases involving traffic stops, firearms, drug allegations, vehicle searches, warrants and other constitutional search-and-seizure issues.


As a former prosecutor and experienced Maryland trial attorney, she reviews the evidence leading up to the discovery of alleged contraband—not simply the fact that police ultimately found it.


If your criminal case involves a questionable stop, detention, search, seizure or warrant, the constitutional analysis should begin with the complete sequence of events.