Criminal Defense in Texas: 5 Recent Cases That Changed Your Rights

Getting arrested changes everything in about thirty seconds. One minute you’re driving home, the next you’re in handcuffs wondering what happens next and whether anything you say can actually help your situation. Most people know they have rights but don’t know what those rights actually do when police are asking questions or searching your car.

The Fourth, Fifth, and Sixth Amendments protect you from unlawful searches, forced self-incrimination, and guarantee legal representation during criminal proceedings. Texas courts have been clarifying exactly how these protections work in recent cases that affect anyone facing charges in Harris County or anywhere else in Texas.

When Police Search Without a Proper Warrant

Wheeler v. State: The Unsworn Affidavit Problem

In 2019, Anthony Wheeler was stopped for DWI in Fort Worth. He had the right to say no to the breathalyser and field sobriety tests under Texas law. To check Wheeler’s blood alcohol level, the officer decided to acquire a search warrant for his blood.

This is where the prosecution messed up. The officer wrote a probable cause affidavit that explained why he thought Wheeler was drunk and why it was okay to take his blood. The affidavit provided all the necessary information about Wheeler’s driving, what he did when he was stopped, and the indicators of drunkenness that the officer saw. But the officer never swore an oath in front of a magistrate that the information in the affidavit was true.

The magistrate still signed the warrant, probably because he thought the oath had been taken or didn’t notice that it was missing. The officer then carried out the warrant and took Wheeler’s blood. The blood test showed that Wheeler was over the legal limit.

Wheeler’s lawyer asked the court to throw out the blood evidence. The trial court said no, but the Fort Worth Court of Appeals said yes, and the Texas Court of Criminal Appeals agreed in 2021. The affidavit wasn’t sworn under oath as required by Article 18.01 of the Texas Code of Criminal Procedure, so all of the blood evidence was thrown out.

The prosecution tried arguing the “good faith exception” under Article 38.23(b) of the Texas Code of Criminal Procedure, which sometimes allows evidence even when police make honest mistakes. The court rejected this because:

The oath requirement has been Texas law for over a hundred years
Every police academy teaches officers about sworn affidavits
The requirement appears in the standard forms officers use daily
No reasonable officer could believe an unsworn affidavit was valid

What This Means in Houston DWI Cases

This case matters because prosecutors in Harris County and across Texas routinely use blood draw warrants in DWI cases when drivers refuse breath tests. The Wheeler decision makes clear that every procedural step matters when challenging these warrants, and defense attorneys who know what to look for can get evidence suppressed even in cases where the officer clearly had probable cause for the arrest.

If you’re facing DWI charges in Houston where blood was drawn under a warrant, your attorney needs to examine whether the probable cause affidavit was properly sworn before a magistrate. The content of the affidavit might be perfect but if the officer skipped the oath, the entire warrant fails and everything that came from it gets excluded from trial.

Geofence Warrants and Your Phone’s Location Data

The 5th Circuit Declares Them Unconstitutional

The Fifth Circuit Court of Appeals said in August 2024 that geofence warrants are against the Fourth Amendment. Police utilise these warrants differently than regular search warrants. Instead of going for a single suspect, they ask Google to give them location data for every phone that was near a crime scene within a certain time period.

The court said that geofence warrants are like the general warrants that British authorities used during colonial times, which the Fourth Amendment was meant to stop. When police employ a geofence warrant, they sift through location data from possibly hundreds of millions of Google users without saying who they are looking for.

The government said that these warrants are distinct from ordinary warrants since they only allow searches at a certain place and time. The 5th Circuit disagreed with this, saying that the search itself is not narrowly limited, even if the results are. Police are basically going through a lot of private data in a dragnet search to discover those they think are guilty.

Texas Courts Are Reviewing This Now

The Texas Court of Criminal Appeals is currently reviewing the validity of geofence warrants in Wells v. State, a case that came up through the Dallas Court of Appeals. The Dallas court had approved the use of a geofence warrant, but after the 5th Circuit’s decision in August 2024, there’s a good chance the Texas high court will follow that reasoning.

Federal appellate decisions like the 5th Circuit ruling are not binding on Texas state courts, but they carry significant weight because both federal and state courts are interpreting the same Fourth Amendment. If the Texas Court of Criminal Appeals follows the 5th Circuit’s analysis, any evidence obtained through geofence warrants in Texas criminal cases could be challenged and potentially suppressed.

How Houston Defense Attorneys Use This

If you’ve been charged with a crime in Houston and the prosecution’s evidence includes location data obtained through a geofence warrant, your can file a motion to suppress based on the 5th Circuit’s ruling. Even though the decision came from a federal court, it provides strong legal reasoning that Texas courts can adopt when evaluating whether geofence warrants violate the Texas Constitution’s search and seizure protections under Article I, Section 9.

The practical effect is that cases relying heavily on geofence location data as the primary evidence may fall apart if that evidence gets excluded. Prosecutors know this, which means defense attorneys can use the potential suppression as leverage in plea negotiations.

Criminal defense is not just about fighting charges after you’ve been arrested. It starts the moment police begin asking questions, continues through searches and seizures, and extends all the way to trial or plea negotiations. A Houston criminal defense attorney understands how Texas courts apply constitutional protections and knows which violations actually get evidence thrown out versus which ones prosecutors can work around.

Miranda Rights: Timing Matters More Than You Think

State v. Johnson Changes the Rules

In State v. Johnson, the Texas Court of Criminal Appeals made a decision in November 2024 that made it clear when Miranda rights do and do not apply. Sedrick Johnson was being looked into for a crime, and the police had previously talked to him twice without arresting him. Johnson answered questions and worked with the police during the first two interviews.

Before the third interrogation, Johnson told the police, “I need to talk to a lawyer,” even though he was free to go and not in detention. The police officers kept looking into it. Later, they detained Johnson on outstanding warrants, told him his Miranda rights, and he said things that made him look guilty.

Johnson’s lawyer said that the police shouldn’t have been able to question him later, even after he had been legally Mirandized, because he had asked for a lawyer earlier. The Dallas Court of Appeals concurred with Johnson and threw out the statements. The Texas Court of Criminal Appeals overturned that ruling and said that you can’t use your Miranda rights “in advance” of being arrested and questioned.

The Custody Requirement Explained

This creates what the court called a “bright-line rule” about when Miranda applies. You have to be in actual custody during an interrogation for Miranda to protect you. Custody means a reasonable person in your situation would not feel free to leave, which typically happens when:

You’re arrested and handcuffed
You’re placed in a police car
Officers tell you that you cannot leave
The situation escalates beyond a normal traffic stop

Before that point, police can ask you questions without reading Miranda warnings because you’re theoretically free to walk away. If you say “I want a lawyer” during this pre-custody phase, police might stop asking questions out of caution, but they’re not legally required to stop the way they would be if you were already in custody.

The Johnson decision matters because it means your request for an attorney only has legal force once you’re in custodial interrogation. Before that point, anything you say can be used against you even if you previously mentioned wanting a lawyer, as long as police properly Mirandize you once custody begins.

What to Say When Stopped by Police

If Houston police stop you for any reason, you need to understand whether you’re in custody or just being detained for investigation. Traffic stops fall into a gray area because courts have held you’re “seized” under the Fourth Amendment but not necessarily in Miranda custody unless the stop escalates beyond a normal traffic violation.

The safest approach is to provide your license and registration as required by Texas Transportation Code, but avoid answering questions about where you’re coming from, where you’re going, or whether you’ve been drinking. You can simply say “I’m not answering questions” without being rude or confrontational.

If police arrest you and read your Miranda rights, clearly state “I’m invoking my right to remain silent and I want a lawyer.” Don’t just stay quiet hoping they’ll figure it out. The Supreme Court has held that you must unambiguously invoke these rights for them to attach, which means actually saying the words out loud.

Police Use of Force During Traffic Stops

Barnes v. [Officer]: Supreme Court Changes the Standard

The Supreme Court of the United States made a unanimous 9-0 judgement in May 2025 on a case from Texas that modifies how courts decide if police used too much force when making arrests. A Texas police officer shot and killed Ashtian Barnes after what started as a routine traffic stop for a toll violation.

The officer said that Barnes was a threat just at the time of the shooting, and the 5th Circuit Court of Appeals had used what it called the “moment of the threat” concept. If this method were used, judges would just look at the seconds before the shooting to see if the officer had a good reason to think that force was needed.

Justice Elena Kagan wrote the conclusion that courts must look at all the events that led up to the use of force, not simply the last few seconds. She disagreed with this restrictive view. When deciding if the officer’s use of force was justified under the Fourth Amendment, this means that everything he or she did before the shooting is important. The Supreme Court threw down the 5th Circuit’s decision to give the officer summary judgement and sent the matter back to be looked at again using the right legal criteria.

How It Changes Texas Cases

This decision affects any case in Texas where police use force during an arrest or detention. Before Barnes, prosecutors and police could focus entirely on what was happening in the seconds before force was used, essentially isolating that moment from everything that led up to it.

Now courts in Texas must look at the entire encounter when evaluating excessive force claims under the Fourth Amendment. If an officer’s actions earlier in the stop escalated the situation or created the danger that supposedly justified the use of force, those actions become part of the analysis.

What “Totality of Circumstances” Actually Means

In practice, this means defense attorneys can now present evidence about everything that happened from the initial stop through the use of force. The analysis includes:

Whether the officer failed to de-escalate when possible
If threats were made that weren’t necessary
Whether the officer created the dangerous situation through poor tactical decisions
How the entire sequence of events unfolded, not just the final moment

This also affects how prosecutors evaluate whether to file charges against officers or defendants in use-of-force situations, because they can no longer rely on isolating the final moment to justify police actions. The entire sequence of events matters under Fourth Amendment analysis.

Cell Phone Searches Need Real Probable Cause

Stocker v. State: Capital Murder and Digital Evidence

In July 2024, the Texas Court of Criminal Appeals decided Stocker v. State, a capital murder case where the defendant was convicted based partly on evidence obtained from a search of his cell phone. Stocker filed a motion to suppress the cell phone evidence, arguing that the warrant affidavit didn’t establish probable cause to search the phone.

The case demonstrates that even in the most serious felony prosecutions, including capital murder, defense attorneys can successfully challenge search warrants by scrutinizing the probable cause affidavit. Just because the underlying crime is serious doesn’t mean prosecutors get to skip constitutional requirements for searches.

The Texas Court of Criminal Appeals reviewed whether the affidavit supporting the cell phone search warrant contained sufficient facts to establish probable cause that evidence of the crime would be found on Stocker’s phone. Article 18.01 of the Texas Code of Criminal Procedure requires that no search warrant shall issue except upon probable cause supported by affidavit.

What Makes a Valid Search Warrant Affidavit

Under Texas law as explained in Washington v. State, probable cause to search exists when reasonably trustworthy facts and circumstances within the officer’s knowledge would lead a person of reasonable prudence to believe that evidence of a crime will be found in the place to be searched.

For cell phone searches specifically, the affidavit needs to explain why investigators believe relevant evidence is actually on the phone, not just that the suspect owned a phone. Modern cell phones contain massive amounts of personal data covering years of someone’s life, which means the Supreme Court in Riley v. California held that warrants for cell phone searches must be based on specific probable cause, not general assumptions.

In Houston criminal cases involving digital evidence, defense attorneys examine search warrant affidavits to determine whether police established a genuine connection between the phone and the suspected criminal activity. The affidavit must show:

Specific facts linking this particular phone to this particular crime
Why investigators believe evidence will be found on the device
More than just “suspects often use phones to communicate about crimes”
Concrete information about calls, texts, or data relevant to the investigation

If the affidavit relies on general assumptions without specific connections, that may not be enough to establish probable cause under Texas law.

How Defense Attorneys Challenge Digital Evidence

When prosecutors plan to introduce text messages, photos, location data, or other information from your phone as evidence against you in a Houston criminal case, your defense attorney should immediately obtain copies of the search warrant and supporting affidavit.

The challenge process involves filing a motion to suppress under Article 38.23 of the Texas Code of Criminal Procedure, which prohibits the use of evidence obtained in violation of constitutional protections. The motion forces prosecutors to prove the warrant was supported by probable cause and executed properly.

If the court grants the motion to suppress, any evidence from the phone search gets excluded from trial. In cases where the cell phone evidence is central to the prosecution’s case, successful suppression often leads to dismissed charges or significantly better plea offers because prosecutors know they cannot prove guilt beyond a reasonable doubt without that evidence.

Understanding Your Rights in Harris County Criminal Cases

These five instances from 2024 and 2025 explain how constitutional rights function in real-life Texas criminal cases. As police and prosecutors try to employ old legal principles in new settings, courts keep making the laws around searches, Miranda warnings, use of force, and digital evidence more clear.

The Fourth Amendment protects you from unreasonable searches, whether the cops are snooping through your car, your phone, or huge databases of location data. If the police didn’t tell you your rights correctly, the Fifth Amendment says that prosecutors can’t use remarks you made while you were in custody. The Sixth Amendment assures that you will have a good lawyer throughout the criminal procedure.

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